/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_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:55:25,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:55:25,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:55:25,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:55:25,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:55:25,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:55:25,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:55:25,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:55:25,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:55:25,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:55:25,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:55:25,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:55:25,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:55:25,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:55:25,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:55:25,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:55:25,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:55:25,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:55:25,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:55:25,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:55:25,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:55:25,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:55:25,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:55:25,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:55:25,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 22:55:25,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 22:55:25,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 22:55:25,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 22:55:25,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 22:55:25,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 22:55:25,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 22:55:25,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 22:55:25,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 22:55:25,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 22:55:25,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 22:55:25,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 22:55:25,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 22:55:25,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 22:55:25,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:55:25,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:55:25,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:55:25,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:55:25,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:55:25,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:55:25,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:55:25,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:55:25,078 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:55:25,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:55:25,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:55:25,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:55:25,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:55:25,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:55:25,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:55:25,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:55:25,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:55:25,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:55:25,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:55:25,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:55:25,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:55:25,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:55:25,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:55:25,081 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:55:25,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:55:25,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:55:25,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:55:25,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:55:25,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:55:25,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:55:25,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:25,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:55:25,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:55:25,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:55:25,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:55:25,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:55:25,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:55:25,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:55:25,394 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:55:25,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label22.c [2020-07-21 22:55:25,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483eb166c/bbc59b67fc8a4e8b8f5c58fbb42ee2c6/FLAG2971a68fa [2020-07-21 22:55:26,007 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:55:26,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label22.c [2020-07-21 22:55:26,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483eb166c/bbc59b67fc8a4e8b8f5c58fbb42ee2c6/FLAG2971a68fa [2020-07-21 22:55:26,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483eb166c/bbc59b67fc8a4e8b8f5c58fbb42ee2c6 [2020-07-21 22:55:26,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:55:26,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:55:26,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:55:26,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:55:26,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:55:26,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:26" (1/1) ... [2020-07-21 22:55:26,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d61c383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:26, skipping insertion in model container [2020-07-21 22:55:26,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:26" (1/1) ... [2020-07-21 22:55:26,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:55:26,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:55:26,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:55:26,787 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:55:27,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:55:27,043 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:55:27,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27 WrapperNode [2020-07-21 22:55:27,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:55:27,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:55:27,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:55:27,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:55:27,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2020-07-21 22:55:27,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:55:27,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:55:27,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:55:27,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:55:27,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:55:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:55:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:55:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:55:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:55:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:55:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:55:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:55:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:55:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:55:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:55:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:55:28,425 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:55:28,425 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:55:28,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:28 BoogieIcfgContainer [2020-07-21 22:55:28,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:55:28,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:55:28,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:55:28,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:55:28,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:55:26" (1/3) ... [2020-07-21 22:55:28,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576db8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:28, skipping insertion in model container [2020-07-21 22:55:28,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (2/3) ... [2020-07-21 22:55:28,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576db8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:28, skipping insertion in model container [2020-07-21 22:55:28,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:28" (3/3) ... [2020-07-21 22:55:28,441 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label22.c [2020-07-21 22:55:28,453 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:55:28,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:55:28,478 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:55:28,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:55:28,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:55:28,505 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:55:28,505 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:55:28,506 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:55:28,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:55:28,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:55:28,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:55:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:55:28,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-21 22:55:28,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:28,545 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] [2020-07-21 22:55:28,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:28,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:28,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1125290487, now seen corresponding path program 1 times [2020-07-21 22:55:28,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:28,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784144384] [2020-07-21 22:55:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:28,783 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:28,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:28,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:55:28,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:29,352 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:55:29,360 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:55:29,361 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:55:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:29,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:29,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784144384] [2020-07-21 22:55:29,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:29,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:55:29,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757601208] [2020-07-21 22:55:29,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:55:29,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:29,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:55:29,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:55:29,502 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:55:30,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:30,688 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:55:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:55:30,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-07-21 22:55:30,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:30,706 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:55:30,706 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:55:30,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:55:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:55:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:55:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:55:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:55:30,777 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 103 [2020-07-21 22:55:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:30,778 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:55:30,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:55:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:55:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-21 22:55:30,782 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:30,782 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] [2020-07-21 22:55:30,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:30,997 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:30,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:30,997 INFO L82 PathProgramCache]: Analyzing trace with hash 451144696, now seen corresponding path program 1 times [2020-07-21 22:55:30,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:30,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060725248] [2020-07-21 22:55:30,999 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:31,113 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:31,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:31,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:55:31,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:31,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:32,022 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:55:32,023 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:55:32,025 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:55:32,026 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:55:32,028 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:55:32,058 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:55:32,059 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:55:32,098 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:32,181 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:32,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060725248] [2020-07-21 22:55:32,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:32,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:55:32,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556898619] [2020-07-21 22:55:32,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:55:32,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:32,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:55:32,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:55:32,327 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:55:33,393 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:55:34,521 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:55:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:36,132 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 22:55:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:55:36,138 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 112 [2020-07-21 22:55:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:36,151 INFO L225 Difference]: With dead ends: 740 [2020-07-21 22:55:36,151 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 22:55:36,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 201 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:55:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 22:55:36,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 22:55:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:55:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 22:55:36,221 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 112 [2020-07-21 22:55:36,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:36,221 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 22:55:36,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:55:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 22:55:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 22:55:36,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:36,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:36,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:36,435 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:36,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:36,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1514897792, now seen corresponding path program 1 times [2020-07-21 22:55:36,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:36,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322084090] [2020-07-21 22:55:36,438 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:36,563 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:55:36,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:36,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:36,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:36,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:36,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322084090] [2020-07-21 22:55:36,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:36,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:55:36,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351368827] [2020-07-21 22:55:36,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:55:36,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:36,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:55:36,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:36,607 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 3 states. [2020-07-21 22:55:37,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:37,258 INFO L93 Difference]: Finished difference Result 1075 states and 1497 transitions. [2020-07-21 22:55:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:55:37,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-21 22:55:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:37,265 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 22:55:37,266 INFO L226 Difference]: Without dead ends: 688 [2020-07-21 22:55:37,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-07-21 22:55:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 684. [2020-07-21 22:55:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-07-21 22:55:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 860 transitions. [2020-07-21 22:55:37,296 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 860 transitions. Word has length 116 [2020-07-21 22:55:37,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:37,297 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 860 transitions. [2020-07-21 22:55:37,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:55:37,297 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 860 transitions. [2020-07-21 22:55:37,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 22:55:37,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:37,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:37,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:37,516 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:37,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1054792408, now seen corresponding path program 1 times [2020-07-21 22:55:37,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:37,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113605236] [2020-07-21 22:55:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:37,621 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:55:37,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:37,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:37,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:55:37,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:37,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113605236] [2020-07-21 22:55:37,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:37,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:55:37,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556491721] [2020-07-21 22:55:37,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:55:37,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:37,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:55:37,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:37,657 INFO L87 Difference]: Start difference. First operand 684 states and 860 transitions. Second operand 3 states. [2020-07-21 22:55:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:38,319 INFO L93 Difference]: Finished difference Result 1658 states and 2156 transitions. [2020-07-21 22:55:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:55:38,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-21 22:55:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:38,326 INFO L225 Difference]: With dead ends: 1658 [2020-07-21 22:55:38,326 INFO L226 Difference]: Without dead ends: 980 [2020-07-21 22:55:38,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-07-21 22:55:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2020-07-21 22:55:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2020-07-21 22:55:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1212 transitions. [2020-07-21 22:55:38,368 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1212 transitions. Word has length 138 [2020-07-21 22:55:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:38,369 INFO L479 AbstractCegarLoop]: Abstraction has 980 states and 1212 transitions. [2020-07-21 22:55:38,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:55:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1212 transitions. [2020-07-21 22:55:38,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 22:55:38,373 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:38,373 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:38,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:38,588 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:38,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:38,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1731271799, now seen corresponding path program 1 times [2020-07-21 22:55:38,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:38,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217574607] [2020-07-21 22:55:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:38,697 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:55:38,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:38,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:38,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:38,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:38,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217574607] [2020-07-21 22:55:38,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:38,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:55:38,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748616399] [2020-07-21 22:55:38,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:55:38,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:38,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:55:38,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:38,737 INFO L87 Difference]: Start difference. First operand 980 states and 1212 transitions. Second operand 3 states. [2020-07-21 22:55:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:39,364 INFO L93 Difference]: Finished difference Result 2248 states and 2875 transitions. [2020-07-21 22:55:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:55:39,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 22:55:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:39,375 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 22:55:39,375 INFO L226 Difference]: Without dead ends: 1274 [2020-07-21 22:55:39,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:39,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2020-07-21 22:55:39,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1272. [2020-07-21 22:55:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-07-21 22:55:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1613 transitions. [2020-07-21 22:55:39,442 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1613 transitions. Word has length 137 [2020-07-21 22:55:39,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:39,443 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1613 transitions. [2020-07-21 22:55:39,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:55:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1613 transitions. [2020-07-21 22:55:39,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 22:55:39,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:39,448 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:39,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:39,663 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:39,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1633335884, now seen corresponding path program 1 times [2020-07-21 22:55:39,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:39,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790428947] [2020-07-21 22:55:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:39,761 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:39,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:39,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:55:39,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:39,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:39,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790428947] [2020-07-21 22:55:39,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:39,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:39,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926233809] [2020-07-21 22:55:39,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:39,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:39,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:39,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:39,865 INFO L87 Difference]: Start difference. First operand 1272 states and 1613 transitions. Second operand 7 states. [2020-07-21 22:55:41,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:41,313 INFO L93 Difference]: Finished difference Result 4698 states and 6235 transitions. [2020-07-21 22:55:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:55:41,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-07-21 22:55:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:41,335 INFO L225 Difference]: With dead ends: 4698 [2020-07-21 22:55:41,336 INFO L226 Difference]: Without dead ends: 3432 [2020-07-21 22:55:41,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:55:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2020-07-21 22:55:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3428. [2020-07-21 22:55:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-07-21 22:55:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4376 transitions. [2020-07-21 22:55:41,446 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4376 transitions. Word has length 144 [2020-07-21 22:55:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:41,447 INFO L479 AbstractCegarLoop]: Abstraction has 3428 states and 4376 transitions. [2020-07-21 22:55:41,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4376 transitions. [2020-07-21 22:55:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 22:55:41,457 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:41,457 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:41,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:41,671 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:41,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:41,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1952861064, now seen corresponding path program 1 times [2020-07-21 22:55:41,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:41,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331579326] [2020-07-21 22:55:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:41,761 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:41,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:41,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:55:41,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:41,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:41,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331579326] [2020-07-21 22:55:41,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:41,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:41,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224064901] [2020-07-21 22:55:41,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:41,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:41,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:41,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:41,877 INFO L87 Difference]: Start difference. First operand 3428 states and 4376 transitions. Second operand 7 states. [2020-07-21 22:55:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:42,783 INFO L93 Difference]: Finished difference Result 9000 states and 12205 transitions. [2020-07-21 22:55:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:55:42,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-07-21 22:55:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:42,815 INFO L225 Difference]: With dead ends: 9000 [2020-07-21 22:55:42,815 INFO L226 Difference]: Without dead ends: 5581 [2020-07-21 22:55:42,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:55:42,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2020-07-21 22:55:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5516. [2020-07-21 22:55:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5516 states. [2020-07-21 22:55:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5516 states to 5516 states and 7016 transitions. [2020-07-21 22:55:42,977 INFO L78 Accepts]: Start accepts. Automaton has 5516 states and 7016 transitions. Word has length 154 [2020-07-21 22:55:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:42,978 INFO L479 AbstractCegarLoop]: Abstraction has 5516 states and 7016 transitions. [2020-07-21 22:55:42,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5516 states and 7016 transitions. [2020-07-21 22:55:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 22:55:42,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:42,989 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:55:43,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:43,202 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:43,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:43,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1968512932, now seen corresponding path program 1 times [2020-07-21 22:55:43,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:43,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39063814] [2020-07-21 22:55:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:43,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:43,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:43,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:43,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:55:43,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:55:43,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39063814] [2020-07-21 22:55:43,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:43,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:43,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321622038] [2020-07-21 22:55:43,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:43,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:43,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:43,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:43,419 INFO L87 Difference]: Start difference. First operand 5516 states and 7016 transitions. Second operand 7 states. [2020-07-21 22:55:44,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:44,783 INFO L93 Difference]: Finished difference Result 12076 states and 15320 transitions. [2020-07-21 22:55:44,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:55:44,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-07-21 22:55:44,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:44,810 INFO L225 Difference]: With dead ends: 12076 [2020-07-21 22:55:44,810 INFO L226 Difference]: Without dead ends: 5371 [2020-07-21 22:55:44,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 327 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 22:55:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2020-07-21 22:55:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 4886. [2020-07-21 22:55:44,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4886 states. [2020-07-21 22:55:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 5888 transitions. [2020-07-21 22:55:44,942 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 5888 transitions. Word has length 166 [2020-07-21 22:55:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:44,942 INFO L479 AbstractCegarLoop]: Abstraction has 4886 states and 5888 transitions. [2020-07-21 22:55:44,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 5888 transitions. [2020-07-21 22:55:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-21 22:55:44,955 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:44,956 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:45,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:45,169 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:45,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:45,170 INFO L82 PathProgramCache]: Analyzing trace with hash 690822455, now seen corresponding path program 1 times [2020-07-21 22:55:45,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:45,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628570431] [2020-07-21 22:55:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:45,320 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:45,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:45,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:45,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 22:55:45,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 142 proven. 28 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 22:55:45,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628570431] [2020-07-21 22:55:45,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:45,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:45,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652046839] [2020-07-21 22:55:45,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:45,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:45,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:45,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:45,528 INFO L87 Difference]: Start difference. First operand 4886 states and 5888 transitions. Second operand 7 states. [2020-07-21 22:55:46,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:46,808 INFO L93 Difference]: Finished difference Result 8158 states and 9796 transitions. [2020-07-21 22:55:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:55:46,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2020-07-21 22:55:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:46,822 INFO L225 Difference]: With dead ends: 8158 [2020-07-21 22:55:46,822 INFO L226 Difference]: Without dead ends: 3405 [2020-07-21 22:55:46,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 446 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:55:46,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2020-07-21 22:55:46,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3394. [2020-07-21 22:55:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3394 states. [2020-07-21 22:55:46,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 3746 transitions. [2020-07-21 22:55:46,901 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 3746 transitions. Word has length 224 [2020-07-21 22:55:46,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:46,901 INFO L479 AbstractCegarLoop]: Abstraction has 3394 states and 3746 transitions. [2020-07-21 22:55:46,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 3746 transitions. [2020-07-21 22:55:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-21 22:55:46,912 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:46,912 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2020-07-21 22:55:47,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:47,126 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:47,126 INFO L82 PathProgramCache]: Analyzing trace with hash -900798159, now seen corresponding path program 1 times [2020-07-21 22:55:47,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:47,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202319193] [2020-07-21 22:55:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:47,217 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:55:47,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:47,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:47,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-07-21 22:55:47,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 170 proven. 26 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-07-21 22:55:47,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202319193] [2020-07-21 22:55:47,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:47,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:47,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732574416] [2020-07-21 22:55:47,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:47,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:47,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:47,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:47,407 INFO L87 Difference]: Start difference. First operand 3394 states and 3746 transitions. Second operand 7 states. [2020-07-21 22:55:47,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:47,805 INFO L93 Difference]: Finished difference Result 5562 states and 6147 transitions. [2020-07-21 22:55:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:55:47,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2020-07-21 22:55:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:47,806 INFO L225 Difference]: With dead ends: 5562 [2020-07-21 22:55:47,806 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:55:47,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 490 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:55:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:55:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:55:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:55:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:55:47,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2020-07-21 22:55:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:47,817 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:55:47,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:55:47,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:55:48,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:48,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:55:49,521 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 107 [2020-07-21 22:55:49,818 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-07-21 22:55:50,108 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2020-07-21 22:55:50,113 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:50,113 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))) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:55:50,113 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:50,113 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,114 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,114 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,114 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,114 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,114 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:55:50,115 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,116 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:50,117 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:50,118 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:55:50,118 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:55:50,118 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:55:50,118 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:50,118 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:50,118 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2020-07-21 22:55:50,119 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:55:50,120 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:55:50,121 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:55:50,122 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:55:50,123 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:55:50,123 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:55:50,124 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:55:50,124 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:55:50,125 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:55:50,126 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,127 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,128 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:55:50,129 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,130 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:55:50,131 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:55:50,132 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,133 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,133 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,133 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse19 (not (= 1 ~a21~0)))) (let ((.cse3 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse19)) (.cse12 (not (<= 11 |old(~a28~0)|))) (.cse16 (<= 11 ~a28~0)) (.cse21 (not (<= 10 |old(~a28~0)|))) (.cse22 (< ~a28~0 11)) (.cse23 (<= 10 ~a28~0)) (.cse24 (not (< |old(~a28~0)| 11))) (.cse7 (not (<= 9 |old(~a28~0)|))) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse6 (not (<= |old(~a17~0)| 7))) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse4 (= 1 ~a25~0)) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse17 (<= ~a11~0 |old(~a11~0)|)) (.cse25 (not (= 8 |old(~a17~0)|))) (.cse26 (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|)))) (.cse20 (not (<= |old(~a11~0)| 0))) (.cse8 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= 8 |old(~a17~0)|))) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse13 (<= ~a28~0 |old(~a28~0)|)) (.cse14 (<= ~a17~0 8)) (.cse15 (<= 8 ~a17~0)) (.cse2 (= ~a19~0 |old(~a19~0)|)) (.cse18 (= ~a25~0 |old(~a25~0)|))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (or .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse0 .cse9 .cse5 .cse12 (and .cse13 .cse14 .cse15 .cse2 .cse16 .cse4) .cse10) (or .cse7 (and .cse17 .cse1 .cse2 .cse11 .cse18) .cse6 .cse19 .cse20) (or .cse0 .cse9 .cse21 (and .cse1 .cse15 .cse22 .cse23 .cse2 .cse3 .cse18) .cse24) (or .cse17 .cse5 .cse21 .cse10 .cse19 .cse20 .cse24) (or .cse0 .cse25 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (= 7 ~a28~0) .cse26 .cse19 .cse20) (or .cse0 .cse12 .cse6 .cse16) (or (and .cse1 .cse23 .cse2 .cse18) .cse6 .cse21) (or .cse17 .cse8 .cse9 .cse10 .cse19 .cse20) (or .cse17 .cse0 .cse5 .cse21 .cse10 .cse19 .cse20) (or .cse9 .cse5 .cse21 (and .cse14 .cse15 .cse22 .cse23 .cse2 .cse4) .cse10 .cse24) (or .cse7 .cse5 .cse6 (and .cse1 .cse2 .cse11 .cse4)) (or .cse0 .cse17 (not (= 10 |old(~a28~0)|)) .cse25 .cse26 .cse19 .cse20) (or .cse8 .cse9 .cse10 (and .cse13 .cse14 .cse15 .cse2 .cse18))))) [2020-07-21 22:55:50,133 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,133 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:55:50,134 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,135 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:55:50,136 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:55:50,137 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:55:50,138 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:55:50,139 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:55:50,140 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:50,141 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:55:50,141 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:55:50,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:50,141 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)|)) (and (<= ~a11~0 |old(~a11~0)|) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:55:50,141 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (= 1 ~a19~0)) (.cse4 (< ~a28~0 11)) (.cse1 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 8)) (.cse0 (<= ~a17~0 7)) (.cse3 (<= 10 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and (<= ~a11~0 0) .cse0 .cse1) (not (= 8 |old(~a17~0)|)) (and .cse2 (<= ~a17~0 |old(~a17~0)|) .cse3 .cse4) (and .cse2 .cse5 .cse6) (and .cse5 .cse4 .cse1 .cse6) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse5 (<= 8 ~a17~0) (<= ~a28~0 9)) (not (= 1 ~a21~0)) (and .cse0 .cse3) (not (<= |old(~a11~0)| 0)))) [2020-07-21 22:55:50,141 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:50,141 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:50,142 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (= 1 ~a19~0)) (.cse4 (< ~a28~0 11)) (.cse1 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 8)) (.cse0 (<= ~a17~0 7)) (.cse3 (<= 10 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and (<= ~a11~0 0) .cse0 .cse1) (not (= 8 |old(~a17~0)|)) (and .cse2 (<= ~a17~0 |old(~a17~0)|) .cse3 .cse4) (and .cse2 .cse5 .cse6) (and .cse5 .cse4 .cse1 .cse6) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse5 (<= 8 ~a17~0) (<= ~a28~0 9)) (not (= 1 ~a21~0)) (and .cse0 .cse3) (not (<= |old(~a11~0)| 0)))) [2020-07-21 22:55:50,142 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:55:50,142 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:55:50,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:55:50 BoogieIcfgContainer [2020-07-21 22:55:50,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:55:50,167 INFO L168 Benchmark]: Toolchain (without parser) took 23893.10 ms. Allocated memory was 145.8 MB in the beginning and 530.1 MB in the end (delta: 384.3 MB). Free memory was 102.5 MB in the beginning and 323.5 MB in the end (delta: -221.0 MB). Peak memory consumption was 364.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:50,168 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:55:50,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.62 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 102.1 MB in the beginning and 173.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:50,170 INFO L168 Benchmark]: Boogie Preprocessor took 113.97 ms. Allocated memory is still 206.6 MB. Free memory was 173.7 MB in the beginning and 168.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:50,171 INFO L168 Benchmark]: RCFGBuilder took 1273.08 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 168.7 MB in the beginning and 184.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:50,172 INFO L168 Benchmark]: TraceAbstraction took 21732.01 ms. Allocated memory was 240.1 MB in the beginning and 530.1 MB in the end (delta: 289.9 MB). Free memory was 184.3 MB in the beginning and 323.5 MB in the end (delta: -139.1 MB). Peak memory consumption was 352.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:50,176 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 145.8 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.62 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 102.1 MB in the beginning and 173.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.97 ms. Allocated memory is still 206.6 MB. Free memory was 173.7 MB in the beginning and 168.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1273.08 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 168.7 MB in the beginning and 184.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21732.01 ms. Allocated memory was 240.1 MB in the beginning and 530.1 MB in the end (delta: 289.9 MB). Free memory was 184.3 MB in the beginning and 323.5 MB in the end (delta: -139.1 MB). Peak memory consumption was 352.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || ((a11 <= 0 && a17 <= 7) && 9 <= a28)) || !(8 == \old(a17))) || (((1 == a19 && a17 <= \old(a17)) && 10 <= a28) && a28 < 11)) || ((1 == a19 && a17 <= 8) && 1 == a25)) || (((a17 <= 8 && a28 < 11) && 9 <= a28) && 1 == a25)) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || ((a17 <= 8 && 8 <= a17) && a28 <= 9)) || !(1 == a21)) || (a17 <= 7 && 10 <= a28)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.5s, OverallIterations: 10, TraceHistogramMax: 7, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1079 SDtfs, 4353 SDslu, 791 SDs, 0 SdLazy, 8753 SolverSat, 1220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2630 GetRequests, 2530 SyntacticMatches, 6 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5516occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 603 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 173 PreInvPairs, 235 NumberOfFragments, 743 HoareAnnotationTreeSize, 173 FomulaSimplifications, 2124 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2220 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1542 NumberOfCodeBlocks, 961 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2574 ConstructedInterpolants, 0 QuantifiedInterpolants, 1475591 SizeOfPredicates, 41 NumberOfNonLiveVariables, 3275 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1595/1671 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...