/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 NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:34:43,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:34:43,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:34:43,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:34:43,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:34:43,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:34:43,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:34:43,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:34:43,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:34:43,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:34:43,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:34:43,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:34:43,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:34:43,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:34:43,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:34:43,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:34:43,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:34:43,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:34:43,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:34:43,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:34:43,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:34:43,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:34:43,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:34:43,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:34:43,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 16:34:43,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 16:34:43,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 16:34:43,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 16:34:43,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 16:34:43,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 16:34:43,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 16:34:43,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 16:34:43,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 16:34:43,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 16:34:43,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 16:34:43,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 16:34:43,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 16:34:43,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 16:34:43,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:34:43,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:34:43,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:34:43,397 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 16:34:43,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:34:43,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:34:43,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:34:43,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:34:43,429 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:34:43,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:34:43,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:34:43,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:34:43,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:34:43,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:34:43,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:34:43,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:34:43,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:34:43,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:34:43,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:34:43,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:34:43,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:34:43,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:34:43,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:34:43,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:34:43,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:34:43,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:43,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:34:43,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:34:43,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:34:43,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:34:43,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:43,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:34:43,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:34:43,435 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 -> NUM_VARIABLES 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 -> 2 [2020-07-21 16:34:43,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:34:43,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:34:43,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:34:43,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:34:43,734 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:34:43,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-21 16:34:43,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db870abf/195d93096bc74c50948e7db66c3f692d/FLAG62a8b4fe9 [2020-07-21 16:34:44,399 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:34:44,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-21 16:34:44,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db870abf/195d93096bc74c50948e7db66c3f692d/FLAG62a8b4fe9 [2020-07-21 16:34:44,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db870abf/195d93096bc74c50948e7db66c3f692d [2020-07-21 16:34:44,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:34:44,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:34:44,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:44,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:34:44,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:34:44,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:44" (1/1) ... [2020-07-21 16:34:44,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2889ae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:44, skipping insertion in model container [2020-07-21 16:34:44,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:44" (1/1) ... [2020-07-21 16:34:44,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:34:44,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:34:45,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:45,178 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:34:45,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:45,463 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:34:45,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45 WrapperNode [2020-07-21 16:34:45,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:45,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:34:45,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:34:45,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:34:45,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (1/1) ... [2020-07-21 16:34:45,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:34:45,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:34:45,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:34:45,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:34:45,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (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 16:34:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:34:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:34:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:34:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:34:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:34:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:34:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:34:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:34:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:34:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:34:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:34:46,903 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:34:46,903 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:34:46,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:46 BoogieIcfgContainer [2020-07-21 16:34:46,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:34:46,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:34:46,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:34:46,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:34:46,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:34:44" (1/3) ... [2020-07-21 16:34:46,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa81cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:46, skipping insertion in model container [2020-07-21 16:34:46,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:45" (2/3) ... [2020-07-21 16:34:46,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa81cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:46, skipping insertion in model container [2020-07-21 16:34:46,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:46" (3/3) ... [2020-07-21 16:34:46,927 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-07-21 16:34:46,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:34:46,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:34:46,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:34:46,998 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:34:46,999 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:34:47,000 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:34:47,000 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:34:47,000 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:34:47,000 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:34:47,001 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:34:47,001 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:34:47,030 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 16:34:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-21 16:34:47,048 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:47,049 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] [2020-07-21 16:34:47,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:47,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:47,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-07-21 16:34:47,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:47,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037386964] [2020-07-21 16:34:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:47,297 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:47,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:47,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:47,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:47,443 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 16:34:47,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:47,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037386964] [2020-07-21 16:34:47,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:47,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:47,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713419960] [2020-07-21 16:34:47,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:47,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:47,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:47,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:47,477 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 16:34:48,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:48,490 INFO L93 Difference]: Finished difference Result 649 states and 1093 transitions. [2020-07-21 16:34:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:48,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-21 16:34:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:48,512 INFO L225 Difference]: With dead ends: 649 [2020-07-21 16:34:48,513 INFO L226 Difference]: Without dead ends: 330 [2020-07-21 16:34:48,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 16:34:48,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-21 16:34:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-07-21 16:34:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-07-21 16:34:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 481 transitions. [2020-07-21 16:34:48,618 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 481 transitions. Word has length 95 [2020-07-21 16:34:48,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:48,620 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 481 transitions. [2020-07-21 16:34:48,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:48,620 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 481 transitions. [2020-07-21 16:34:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-21 16:34:48,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:48,635 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 16:34:48,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:48,851 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:48,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:48,852 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-07-21 16:34:48,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:48,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449242349] [2020-07-21 16:34:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:48,948 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:48,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:48,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:48,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:48,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:48,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449242349] [2020-07-21 16:34:48,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:48,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:48,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383413294] [2020-07-21 16:34:48,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:48,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:48,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:48,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:48,992 INFO L87 Difference]: Start difference. First operand 330 states and 481 transitions. Second operand 3 states. [2020-07-21 16:34:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:49,644 INFO L93 Difference]: Finished difference Result 948 states and 1400 transitions. [2020-07-21 16:34:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:49,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-21 16:34:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:49,654 INFO L225 Difference]: With dead ends: 948 [2020-07-21 16:34:49,654 INFO L226 Difference]: Without dead ends: 624 [2020-07-21 16:34:49,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 16:34:49,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-07-21 16:34:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 622. [2020-07-21 16:34:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-21 16:34:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 877 transitions. [2020-07-21 16:34:49,698 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 877 transitions. Word has length 103 [2020-07-21 16:34:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:49,698 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 877 transitions. [2020-07-21 16:34:49,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 877 transitions. [2020-07-21 16:34:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-21 16:34:49,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:49,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:34:49,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:49,916 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:49,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1456059206, now seen corresponding path program 1 times [2020-07-21 16:34:49,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:49,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060495971] [2020-07-21 16:34:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:50,018 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:50,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:50,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:50,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:50,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:50,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060495971] [2020-07-21 16:34:50,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:50,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:50,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175554403] [2020-07-21 16:34:50,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:50,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:50,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:50,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:50,114 INFO L87 Difference]: Start difference. First operand 622 states and 877 transitions. Second operand 3 states. [2020-07-21 16:34:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:50,785 INFO L93 Difference]: Finished difference Result 1815 states and 2610 transitions. [2020-07-21 16:34:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:50,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-21 16:34:50,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:50,797 INFO L225 Difference]: With dead ends: 1815 [2020-07-21 16:34:50,797 INFO L226 Difference]: Without dead ends: 1199 [2020-07-21 16:34:50,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 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 16:34:50,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-07-21 16:34:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1199. [2020-07-21 16:34:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2020-07-21 16:34:50,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1577 transitions. [2020-07-21 16:34:50,888 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1577 transitions. Word has length 109 [2020-07-21 16:34:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:50,890 INFO L479 AbstractCegarLoop]: Abstraction has 1199 states and 1577 transitions. [2020-07-21 16:34:50,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:50,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1577 transitions. [2020-07-21 16:34:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 16:34:50,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:50,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:51,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:51,117 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:51,117 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-07-21 16:34:51,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:51,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167300072] [2020-07-21 16:34:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:51,210 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:51,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:51,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:51,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:51,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:51,362 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:51,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167300072] [2020-07-21 16:34:51,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:51,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:51,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469931105] [2020-07-21 16:34:51,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:51,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:51,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:51,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:51,365 INFO L87 Difference]: Start difference. First operand 1199 states and 1577 transitions. Second operand 7 states. [2020-07-21 16:34:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:52,052 INFO L93 Difference]: Finished difference Result 2399 states and 3194 transitions. [2020-07-21 16:34:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:34:52,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-07-21 16:34:52,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:52,062 INFO L225 Difference]: With dead ends: 2399 [2020-07-21 16:34:52,062 INFO L226 Difference]: Without dead ends: 1206 [2020-07-21 16:34:52,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 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 16:34:52,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-07-21 16:34:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1188. [2020-07-21 16:34:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2020-07-21 16:34:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1536 transitions. [2020-07-21 16:34:52,102 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1536 transitions. Word has length 113 [2020-07-21 16:34:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:52,103 INFO L479 AbstractCegarLoop]: Abstraction has 1188 states and 1536 transitions. [2020-07-21 16:34:52,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1536 transitions. [2020-07-21 16:34:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 16:34:52,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:52,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:52,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:52,323 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:52,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:52,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1133854759, now seen corresponding path program 1 times [2020-07-21 16:34:52,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:52,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676753093] [2020-07-21 16:34:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:52,406 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:52,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:52,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:52,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:52,464 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:52,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:52,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676753093] [2020-07-21 16:34:52,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:52,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:52,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011265544] [2020-07-21 16:34:52,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:52,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:52,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:52,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:52,467 INFO L87 Difference]: Start difference. First operand 1188 states and 1536 transitions. Second operand 3 states. [2020-07-21 16:34:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:53,130 INFO L93 Difference]: Finished difference Result 2946 states and 3832 transitions. [2020-07-21 16:34:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:53,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-21 16:34:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:53,142 INFO L225 Difference]: With dead ends: 2946 [2020-07-21 16:34:53,142 INFO L226 Difference]: Without dead ends: 1183 [2020-07-21 16:34:53,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 16:34:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2020-07-21 16:34:53,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2020-07-21 16:34:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-07-21 16:34:53,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1477 transitions. [2020-07-21 16:34:53,188 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1477 transitions. Word has length 121 [2020-07-21 16:34:53,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:53,188 INFO L479 AbstractCegarLoop]: Abstraction has 1183 states and 1477 transitions. [2020-07-21 16:34:53,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1477 transitions. [2020-07-21 16:34:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 16:34:53,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:53,196 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:34:53,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:53,411 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:53,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1118081225, now seen corresponding path program 1 times [2020-07-21 16:34:53,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:53,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695449787] [2020-07-21 16:34:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:53,528 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:53,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:53,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:53,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:53,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:53,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695449787] [2020-07-21 16:34:53,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:53,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:53,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507467788] [2020-07-21 16:34:53,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:53,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:53,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:53,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:53,644 INFO L87 Difference]: Start difference. First operand 1183 states and 1477 transitions. Second operand 6 states. [2020-07-21 16:34:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:54,448 INFO L93 Difference]: Finished difference Result 3014 states and 3913 transitions. [2020-07-21 16:34:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:54,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-21 16:34:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:54,462 INFO L225 Difference]: With dead ends: 3014 [2020-07-21 16:34:54,462 INFO L226 Difference]: Without dead ends: 1837 [2020-07-21 16:34:54,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 240 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2020-07-21 16:34:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1801. [2020-07-21 16:34:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2020-07-21 16:34:54,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2139 transitions. [2020-07-21 16:34:54,563 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2139 transitions. Word has length 123 [2020-07-21 16:34:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:54,563 INFO L479 AbstractCegarLoop]: Abstraction has 1801 states and 2139 transitions. [2020-07-21 16:34:54,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2139 transitions. [2020-07-21 16:34:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 16:34:54,569 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:54,569 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 16:34:54,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:54,784 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:54,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:54,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1954430686, now seen corresponding path program 1 times [2020-07-21 16:34:54,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:54,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842691773] [2020-07-21 16:34:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:54,883 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:54,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:54,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:54,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 16:34:54,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 16:34:55,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842691773] [2020-07-21 16:34:55,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:55,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:55,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368525223] [2020-07-21 16:34:55,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:55,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:55,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:55,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:55,035 INFO L87 Difference]: Start difference. First operand 1801 states and 2139 transitions. Second operand 7 states. [2020-07-21 16:34:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:55,895 INFO L93 Difference]: Finished difference Result 5001 states and 6097 transitions. [2020-07-21 16:34:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:55,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-07-21 16:34:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:55,913 INFO L225 Difference]: With dead ends: 5001 [2020-07-21 16:34:55,913 INFO L226 Difference]: Without dead ends: 3206 [2020-07-21 16:34:55,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2020-07-21 16:34:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3154. [2020-07-21 16:34:56,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3154 states. [2020-07-21 16:34:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 3769 transitions. [2020-07-21 16:34:56,015 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 3769 transitions. Word has length 139 [2020-07-21 16:34:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:56,016 INFO L479 AbstractCegarLoop]: Abstraction has 3154 states and 3769 transitions. [2020-07-21 16:34:56,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 3769 transitions. [2020-07-21 16:34:56,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 16:34:56,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:56,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:34:56,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:56,236 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:56,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2021068016, now seen corresponding path program 1 times [2020-07-21 16:34:56,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:56,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525609763] [2020-07-21 16:34:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:56,327 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:56,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:56,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:56,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 16:34:56,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:56,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525609763] [2020-07-21 16:34:56,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:56,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:56,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120905757] [2020-07-21 16:34:56,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:56,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:56,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:56,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:56,402 INFO L87 Difference]: Start difference. First operand 3154 states and 3769 transitions. Second operand 3 states. [2020-07-21 16:34:56,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:56,972 INFO L93 Difference]: Finished difference Result 6888 states and 8252 transitions. [2020-07-21 16:34:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:56,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-21 16:34:56,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:56,992 INFO L225 Difference]: With dead ends: 6888 [2020-07-21 16:34:56,992 INFO L226 Difference]: Without dead ends: 3884 [2020-07-21 16:34:57,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 16:34:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3884 states. [2020-07-21 16:34:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3884 to 3882. [2020-07-21 16:34:57,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2020-07-21 16:34:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4651 transitions. [2020-07-21 16:34:57,101 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4651 transitions. Word has length 139 [2020-07-21 16:34:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:57,102 INFO L479 AbstractCegarLoop]: Abstraction has 3882 states and 4651 transitions. [2020-07-21 16:34:57,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4651 transitions. [2020-07-21 16:34:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 16:34:57,110 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:57,111 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:57,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:57,324 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:57,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:57,324 INFO L82 PathProgramCache]: Analyzing trace with hash 979862262, now seen corresponding path program 1 times [2020-07-21 16:34:57,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:57,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352073126] [2020-07-21 16:34:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:57,414 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:57,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:57,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 16:34:57,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 16:34:57,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:57,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352073126] [2020-07-21 16:34:57,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:57,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:57,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903168952] [2020-07-21 16:34:57,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:57,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:57,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:57,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:57,451 INFO L87 Difference]: Start difference. First operand 3882 states and 4651 transitions. Second operand 5 states. [2020-07-21 16:34:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:58,199 INFO L93 Difference]: Finished difference Result 7692 states and 9405 transitions. [2020-07-21 16:34:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:34:58,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-21 16:34:58,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:58,217 INFO L225 Difference]: With dead ends: 7692 [2020-07-21 16:34:58,217 INFO L226 Difference]: Without dead ends: 3960 [2020-07-21 16:34:58,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2020-07-21 16:34:58,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3468. [2020-07-21 16:34:58,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3468 states. [2020-07-21 16:34:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 3910 transitions. [2020-07-21 16:34:58,319 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 3910 transitions. Word has length 141 [2020-07-21 16:34:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:58,319 INFO L479 AbstractCegarLoop]: Abstraction has 3468 states and 3910 transitions. [2020-07-21 16:34:58,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 3910 transitions. [2020-07-21 16:34:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 16:34:58,327 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:58,327 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 16:34:58,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:58,541 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:58,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:58,542 INFO L82 PathProgramCache]: Analyzing trace with hash -27567672, now seen corresponding path program 1 times [2020-07-21 16:34:58,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:58,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335369939] [2020-07-21 16:34:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:34:58,647 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:58,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:58,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:58,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 16:34:58,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 71 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 16:34:58,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335369939] [2020-07-21 16:34:58,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:58,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:58,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125743574] [2020-07-21 16:34:58,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:58,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:58,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:58,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:58,773 INFO L87 Difference]: Start difference. First operand 3468 states and 3910 transitions. Second operand 6 states. [2020-07-21 16:34:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:59,536 INFO L93 Difference]: Finished difference Result 7145 states and 8214 transitions. [2020-07-21 16:34:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:59,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-07-21 16:34:59,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:59,554 INFO L225 Difference]: With dead ends: 7145 [2020-07-21 16:34:59,554 INFO L226 Difference]: Without dead ends: 3829 [2020-07-21 16:34:59,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:59,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2020-07-21 16:34:59,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3765. [2020-07-21 16:34:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3765 states. [2020-07-21 16:34:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 4238 transitions. [2020-07-21 16:34:59,652 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 4238 transitions. Word has length 164 [2020-07-21 16:34:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:59,653 INFO L479 AbstractCegarLoop]: Abstraction has 3765 states and 4238 transitions. [2020-07-21 16:34:59,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 4238 transitions. [2020-07-21 16:34:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 16:34:59,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:59,662 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:34:59,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:59,876 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:59,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1100298320, now seen corresponding path program 1 times [2020-07-21 16:34:59,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:59,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620214915] [2020-07-21 16:34:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:59,997 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:59,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:59,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:35:00,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 16:35:00,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 79 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 16:35:00,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620214915] [2020-07-21 16:35:00,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:00,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:35:00,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360103387] [2020-07-21 16:35:00,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:35:00,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:00,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:35:00,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:35:00,112 INFO L87 Difference]: Start difference. First operand 3765 states and 4238 transitions. Second operand 7 states. [2020-07-21 16:35:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:01,470 INFO L93 Difference]: Finished difference Result 7453 states and 8585 transitions. [2020-07-21 16:35:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:35:01,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-21 16:35:01,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:01,471 INFO L225 Difference]: With dead ends: 7453 [2020-07-21 16:35:01,471 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:35:01,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 332 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 16:35:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:35:01,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:35:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:35:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:35:01,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2020-07-21 16:35:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:01,489 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:35:01,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:35:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:35:01,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:35:01,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:01,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:35:02,358 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 156 [2020-07-21 16:35:02,721 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 156 [2020-07-21 16:35:03,868 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2020-07-21 16:35:04,527 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-07-21 16:35:05,205 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-07-21 16:35:05,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:35:05,209 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)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 16:35:05,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:35:05,210 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,210 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,210 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,210 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,210 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 16:35:05,211 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 16:35:05,212 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 16:35:05,213 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:35:05,214 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,215 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 16:35:05,216 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,217 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 16:35:05,218 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,219 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 16:35:05,220 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,221 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,222 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 16:35:05,223 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,224 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 16:35:05,225 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,226 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 16:35:05,227 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 16:35:05,228 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 16:35:05,229 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 16:35:05,229 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 16:35:05,229 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 16:35:05,229 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,229 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,229 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,230 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (= 1 |old(~a19~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse17 (= 1 ~a25~0)) (.cse14 (<= ~a28~0 |old(~a28~0)|)) (.cse15 (<= ~a17~0 8)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse18 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (and .cse14 .cse15 .cse16 .cse18)) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse2 (not (<= |old(~a25~0)| 0))) (.cse13 (and .cse14 .cse15 .cse16 .cse9 .cse17)) (.cse11 (not (<= |old(~a28~0)| 10))) (.cse4 (not .cse10)) (.cse12 (<= ~a11~0 0)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse7 (not (<= |old(~a11~0)| 0))) (.cse0 (not (<= 9 |old(~a28~0)|))) (.cse8 (not (<= |old(~a17~0)| 7)))) (and (or .cse0 .cse1 .cse2 (<= ~a28~0 9) .cse3) (or .cse4 (not (<= 8 |old(~a28~0)|)) (<= 8 ~a28~0) .cse5 .cse3) (or .cse1 .cse2 .cse6 .cse3 .cse7) (or .cse0 .cse8 .cse9) (or .cse10 .cse1 .cse2 .cse6 .cse3) (or .cse11 .cse12 .cse0 .cse5 .cse3 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse9) (or .cse4 .cse13 .cse0 .cse5 .cse3) (or .cse4 .cse5 (and .cse14 .cse15 .cse16 .cse17) .cse3) (or .cse4 .cse11 .cse12 .cse2 .cse3 .cse7) (or (<= ~a17~0 |old(~a17~0)|) .cse8) (or .cse10 .cse12 .cse0 .cse8 .cse7) (or .cse12 .cse1 .cse2 .cse3 .cse7) (or .cse4 (and .cse15 (<= ~a28~0 10) .cse16 .cse9 .cse18) .cse11 .cse0 .cse2 .cse3) (or .cse13 .cse11 .cse0 .cse5 .cse3) (or .cse4 .cse12 .cse5 .cse3 .cse7) (or .cse10 .cse0 .cse8 (not (= 1 ~a19~0)))))) [2020-07-21 16:35:05,230 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,230 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,230 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,230 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 16:35:05,230 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 16:35:05,230 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 16:35:05,231 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,232 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 16:35:05,233 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 16:35:05,234 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 16:35:05,235 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 16:35:05,236 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 16:35:05,237 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 16:35:05,238 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:35:05,238 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 9) (<= ~a25~0 0)) [2020-07-21 16:35:05,238 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:35:05,238 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:35:05,238 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 9)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 16:35:05,238 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0)) (.cse2 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 10)) (.cse1 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1 (not .cse2)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse0 .cse3) (and .cse0 .cse4 .cse5 .cse3) (not (<= |old(~a28~0)| 9)) (and .cse2 .cse0 .cse4 .cse1 .cse5) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 16:35:05,239 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:35:05,239 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:35:05,239 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0)) (.cse2 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 10)) (.cse1 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1 (not .cse2)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse0 .cse3) (and .cse0 .cse4 .cse5 .cse3) (not (<= |old(~a28~0)| 9)) (and .cse2 .cse0 .cse4 .cse1 .cse5) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 16:35:05,239 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 16:35:05,239 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 16:35:05,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:35:05 BoogieIcfgContainer [2020-07-21 16:35:05,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:35:05,264 INFO L168 Benchmark]: Toolchain (without parser) took 20614.50 ms. Allocated memory was 145.2 MB in the beginning and 497.0 MB in the end (delta: 351.8 MB). Free memory was 99.9 MB in the beginning and 370.5 MB in the end (delta: -270.6 MB). Peak memory consumption was 324.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:05,265 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 119.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 16:35:05,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.41 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 99.5 MB in the beginning and 171.4 MB in the end (delta: -72.0 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:05,266 INFO L168 Benchmark]: Boogie Preprocessor took 114.26 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:05,267 INFO L168 Benchmark]: RCFGBuilder took 1334.41 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 181.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:05,268 INFO L168 Benchmark]: TraceAbstraction took 18343.79 ms. Allocated memory was 238.0 MB in the beginning and 497.0 MB in the end (delta: 259.0 MB). Free memory was 181.1 MB in the beginning and 370.5 MB in the end (delta: -189.4 MB). Peak memory consumption was 312.5 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:05,271 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 119.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.41 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 99.5 MB in the beginning and 171.4 MB in the end (delta: -72.0 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.26 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1334.41 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 181.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18343.79 ms. Allocated memory was 238.0 MB in the beginning and 497.0 MB in the end (delta: 259.0 MB). Free memory was 181.1 MB in the beginning and 370.5 MB in the end (delta: -189.4 MB). Peak memory consumption was 312.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || (((a17 <= 8 && a28 <= 9) && a25 <= 0) && !(1 == a19))) || (((a17 <= \old(a17) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || ((1 == a19 && a17 <= 8) && 1 == a25)) || (((a17 <= 8 && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a28) <= 9)) || ((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || a17 <= 7) || !(\old(a17) <= 8)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1353 SDtfs, 3829 SDslu, 569 SDs, 0 SdLazy, 6291 SolverSat, 818 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2132 GetRequests, 2083 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3882occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 666 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 189 PreInvPairs, 287 NumberOfFragments, 639 HoareAnnotationTreeSize, 189 FomulaSimplifications, 10121 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8473 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1415 NumberOfCodeBlocks, 1415 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2106 ConstructedInterpolants, 0 QuantifiedInterpolants, 524494 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4080 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 749/821 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...