/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:27:40,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:27:40,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:27:40,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:27:40,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:27:40,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:27:40,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:27:40,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:27:40,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:27:40,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:27:40,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:27:40,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:27:40,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:27:40,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:27:40,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:27:40,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:27:40,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:27:40,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:27:40,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:27:40,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:27:40,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:27:40,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:27:40,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:27:40,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:27:40,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 17:27:40,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 17:27:40,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 17:27:40,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 17:27:40,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 17:27:40,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 17:27:40,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 17:27:40,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 17:27:40,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 17:27:40,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 17:27:40,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 17:27:40,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 17:27:40,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 17:27:40,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 17:27:40,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:27:40,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:27:40,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:27:40,467 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 [2020-07-20 17:27:40,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:27:40,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:27:40,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:27:40,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:27:40,515 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:27:40,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:27:40,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:27:40,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:27:40,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:27:40,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:27:40,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:27:40,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:27:40,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:27:40,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:27:40,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:27:40,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:27:40,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:27:40,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:27:40,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:27:40,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:27:40,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:27:40,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:27:40,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:27:40,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:27:40,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:27:40,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:27:40,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:40,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:27:40,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:27:40,523 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 -> 4 [2020-07-20 17:27:40,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:27:40,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:27:40,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:27:40,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:27:40,889 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:27:40,890 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-20 17:27:40,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fae0097/719be1ba68ea4f408eeab1da9cf916b1/FLAGb1244d15b [2020-07-20 17:27:41,625 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:27:41,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-20 17:27:41,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fae0097/719be1ba68ea4f408eeab1da9cf916b1/FLAGb1244d15b [2020-07-20 17:27:41,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fae0097/719be1ba68ea4f408eeab1da9cf916b1 [2020-07-20 17:27:41,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:27:41,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:27:41,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:41,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:27:41,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:27:41,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:41" (1/1) ... [2020-07-20 17:27:41,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37828335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:41, skipping insertion in model container [2020-07-20 17:27:41,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:41" (1/1) ... [2020-07-20 17:27:41,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:27:41,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:27:42,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:42,420 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:27:42,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:42,705 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:27:42,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42 WrapperNode [2020-07-20 17:27:42,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:42,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:27:42,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:27:42,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:27:42,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (1/1) ... [2020-07-20 17:27:42,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:27:42,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:27:42,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:27:42,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:27:42,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (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 [2020-07-20 17:27:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:27:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:27:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:27:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:27:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:27:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:27:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:27:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:27:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:27:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:27:42,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:27:44,244 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:27:44,244 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:27:44,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:44 BoogieIcfgContainer [2020-07-20 17:27:44,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:27:44,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:27:44,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:27:44,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:27:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:27:41" (1/3) ... [2020-07-20 17:27:44,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4e452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:44, skipping insertion in model container [2020-07-20 17:27:44,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:42" (2/3) ... [2020-07-20 17:27:44,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4e452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:44, skipping insertion in model container [2020-07-20 17:27:44,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:44" (3/3) ... [2020-07-20 17:27:44,270 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2020-07-20 17:27:44,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:27:44,300 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:27:44,317 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:27:44,353 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:27:44,353 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:27:44,353 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:27:44,353 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:27:44,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:27:44,354 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:27:44,354 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:27:44,354 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:27:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:27:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 17:27:44,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:44,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:44,406 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:44,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:44,413 INFO L82 PathProgramCache]: Analyzing trace with hash -421614983, now seen corresponding path program 1 times [2020-07-20 17:27:44,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:44,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922566971] [2020-07-20 17:27:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:44,672 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:44,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:44,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:44,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:44,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:44,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922566971] [2020-07-20 17:27:44,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:44,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:44,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762854036] [2020-07-20 17:27:44,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:44,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:44,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:44,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:44,860 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:27:45,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:45,928 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 17:27:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:45,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-07-20 17:27:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:45,952 INFO L225 Difference]: With dead ends: 615 [2020-07-20 17:27:45,952 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 17:27:45,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:45,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 17:27:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 17:27:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 17:27:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 17:27:46,052 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 147 [2020-07-20 17:27:46,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:46,054 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 17:27:46,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 17:27:46,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-20 17:27:46,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:46,061 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:46,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:46,277 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:46,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:46,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1468794956, now seen corresponding path program 1 times [2020-07-20 17:27:46,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:46,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879294929] [2020-07-20 17:27:46,279 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:46,438 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:46,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:46,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:46,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:46,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:46,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879294929] [2020-07-20 17:27:46,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:46,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:46,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666793447] [2020-07-20 17:27:46,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:46,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:46,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:46,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:46,503 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 17:27:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:47,179 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 17:27:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:47,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-07-20 17:27:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:47,189 INFO L225 Difference]: With dead ends: 919 [2020-07-20 17:27:47,189 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 17:27:47,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 17:27:47,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 17:27:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 17:27:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 17:27:47,227 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 162 [2020-07-20 17:27:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:47,228 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 17:27:47,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 17:27:47,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-20 17:27:47,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:47,232 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:47,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:47,446 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:47,448 INFO L82 PathProgramCache]: Analyzing trace with hash -178268063, now seen corresponding path program 1 times [2020-07-20 17:27:47,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:47,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12340602] [2020-07-20 17:27:47,449 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:47,582 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:47,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:47,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:47,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:47,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:47,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12340602] [2020-07-20 17:27:47,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:47,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:47,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234094683] [2020-07-20 17:27:47,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:47,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:47,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:47,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:47,654 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 17:27:48,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:48,397 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-20 17:27:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:48,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-07-20 17:27:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:48,406 INFO L225 Difference]: With dead ends: 1209 [2020-07-20 17:27:48,406 INFO L226 Difference]: Without dead ends: 753 [2020-07-20 17:27:48,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-20 17:27:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-20 17:27:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 17:27:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-20 17:27:48,496 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 169 [2020-07-20 17:27:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:48,497 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-20 17:27:48,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-20 17:27:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 17:27:48,501 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:48,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:48,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:48,706 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:48,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:48,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1977015017, now seen corresponding path program 1 times [2020-07-20 17:27:48,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:48,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064609034] [2020-07-20 17:27:48,708 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:48,821 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:48,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:48,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:48,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:48,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:48,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064609034] [2020-07-20 17:27:48,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:48,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:48,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732954811] [2020-07-20 17:27:48,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:48,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:48,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:48,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:48,913 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 3 states. [2020-07-20 17:27:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:49,653 INFO L93 Difference]: Finished difference Result 1505 states and 2105 transitions. [2020-07-20 17:27:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:49,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-07-20 17:27:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:49,662 INFO L225 Difference]: With dead ends: 1505 [2020-07-20 17:27:49,662 INFO L226 Difference]: Without dead ends: 902 [2020-07-20 17:27:49,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-07-20 17:27:49,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 756. [2020-07-20 17:27:49,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-07-20 17:27:49,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 988 transitions. [2020-07-20 17:27:49,719 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 988 transitions. Word has length 173 [2020-07-20 17:27:49,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:49,720 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 988 transitions. [2020-07-20 17:27:49,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 988 transitions. [2020-07-20 17:27:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-20 17:27:49,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:49,725 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:49,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:49,941 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:49,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:49,942 INFO L82 PathProgramCache]: Analyzing trace with hash -347277386, now seen corresponding path program 1 times [2020-07-20 17:27:49,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:49,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512198324] [2020-07-20 17:27:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:50,080 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:50,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:50,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:50,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:50,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:50,237 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:50,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512198324] [2020-07-20 17:27:50,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:50,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:27:50,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654973316] [2020-07-20 17:27:50,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:27:50,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:50,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:27:50,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:27:50,240 INFO L87 Difference]: Start difference. First operand 756 states and 988 transitions. Second operand 7 states. [2020-07-20 17:27:51,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:51,290 INFO L93 Difference]: Finished difference Result 1824 states and 2492 transitions. [2020-07-20 17:27:51,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:51,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-20 17:27:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:51,298 INFO L225 Difference]: With dead ends: 1824 [2020-07-20 17:27:51,299 INFO L226 Difference]: Without dead ends: 1074 [2020-07-20 17:27:51,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 390 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:51,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2020-07-20 17:27:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 920. [2020-07-20 17:27:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-07-20 17:27:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1204 transitions. [2020-07-20 17:27:51,338 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1204 transitions. Word has length 198 [2020-07-20 17:27:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:51,339 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1204 transitions. [2020-07-20 17:27:51,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:27:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1204 transitions. [2020-07-20 17:27:51,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 17:27:51,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:51,344 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:51,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:51,558 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:51,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1272202501, now seen corresponding path program 1 times [2020-07-20 17:27:51,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:51,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427325328] [2020-07-20 17:27:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:51,701 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:51,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:51,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:51,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-20 17:27:51,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:51,864 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 58 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 17:27:51,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427325328] [2020-07-20 17:27:51,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:51,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:27:51,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605821111] [2020-07-20 17:27:51,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:27:51,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:51,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:27:51,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:27:51,868 INFO L87 Difference]: Start difference. First operand 920 states and 1204 transitions. Second operand 7 states. [2020-07-20 17:27:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:53,521 INFO L93 Difference]: Finished difference Result 3366 states and 4682 transitions. [2020-07-20 17:27:53,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:53,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-20 17:27:53,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:53,541 INFO L225 Difference]: With dead ends: 3366 [2020-07-20 17:27:53,542 INFO L226 Difference]: Without dead ends: 2452 [2020-07-20 17:27:53,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:53,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-07-20 17:27:53,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2444. [2020-07-20 17:27:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2020-07-20 17:27:53,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3109 transitions. [2020-07-20 17:27:53,702 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3109 transitions. Word has length 206 [2020-07-20 17:27:53,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:53,702 INFO L479 AbstractCegarLoop]: Abstraction has 2444 states and 3109 transitions. [2020-07-20 17:27:53,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:27:53,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3109 transitions. [2020-07-20 17:27:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-20 17:27:53,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:53,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:53,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:53,933 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:53,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1421213303, now seen corresponding path program 1 times [2020-07-20 17:27:53,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:53,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555997555] [2020-07-20 17:27:53,934 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:54,039 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:54,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:54,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:54,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:54,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:54,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555997555] [2020-07-20 17:27:54,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:54,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:54,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525407935] [2020-07-20 17:27:54,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:54,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:54,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:54,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:54,116 INFO L87 Difference]: Start difference. First operand 2444 states and 3109 transitions. Second operand 3 states. [2020-07-20 17:27:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:54,784 INFO L93 Difference]: Finished difference Result 7106 states and 9193 transitions. [2020-07-20 17:27:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:54,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-20 17:27:54,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:54,814 INFO L225 Difference]: With dead ends: 7106 [2020-07-20 17:27:54,815 INFO L226 Difference]: Without dead ends: 4672 [2020-07-20 17:27:54,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2020-07-20 17:27:55,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4371. [2020-07-20 17:27:55,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4371 states. [2020-07-20 17:27:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 5553 transitions. [2020-07-20 17:27:55,047 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 5553 transitions. Word has length 205 [2020-07-20 17:27:55,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:55,047 INFO L479 AbstractCegarLoop]: Abstraction has 4371 states and 5553 transitions. [2020-07-20 17:27:55,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 5553 transitions. [2020-07-20 17:27:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-20 17:27:55,068 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:55,068 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:55,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:55,283 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:55,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:55,283 INFO L82 PathProgramCache]: Analyzing trace with hash 575607827, now seen corresponding path program 1 times [2020-07-20 17:27:55,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:55,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986922852] [2020-07-20 17:27:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:55,416 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:55,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:55,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:27:55,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:55,468 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 17:27:55,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:55,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986922852] [2020-07-20 17:27:55,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:55,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:27:55,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429418828] [2020-07-20 17:27:55,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:27:55,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:55,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:27:55,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:27:55,470 INFO L87 Difference]: Start difference. First operand 4371 states and 5553 transitions. Second operand 5 states. [2020-07-20 17:27:56,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:56,270 INFO L93 Difference]: Finished difference Result 8420 states and 10581 transitions. [2020-07-20 17:27:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:56,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2020-07-20 17:27:56,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:56,293 INFO L225 Difference]: With dead ends: 8420 [2020-07-20 17:27:56,293 INFO L226 Difference]: Without dead ends: 4059 [2020-07-20 17:27:56,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:27:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2020-07-20 17:27:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 2719. [2020-07-20 17:27:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2020-07-20 17:27:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3192 transitions. [2020-07-20 17:27:56,438 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3192 transitions. Word has length 236 [2020-07-20 17:27:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:56,439 INFO L479 AbstractCegarLoop]: Abstraction has 2719 states and 3192 transitions. [2020-07-20 17:27:56,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:27:56,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3192 transitions. [2020-07-20 17:27:56,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-20 17:27:56,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:56,503 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:56,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:56,713 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:56,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:56,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1177788655, now seen corresponding path program 1 times [2020-07-20 17:27:56,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:56,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710654640] [2020-07-20 17:27:56,715 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:56,836 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:56,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:56,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:56,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:56,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:56,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710654640] [2020-07-20 17:27:56,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:56,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:56,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088995812] [2020-07-20 17:27:56,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:56,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:56,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:56,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:56,996 INFO L87 Difference]: Start difference. First operand 2719 states and 3192 transitions. Second operand 6 states. [2020-07-20 17:27:58,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:58,105 INFO L93 Difference]: Finished difference Result 6464 states and 7579 transitions. [2020-07-20 17:27:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:27:58,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-20 17:27:58,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:58,121 INFO L225 Difference]: With dead ends: 6464 [2020-07-20 17:27:58,121 INFO L226 Difference]: Without dead ends: 2572 [2020-07-20 17:27:58,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:58,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2020-07-20 17:27:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2418. [2020-07-20 17:27:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2418 states. [2020-07-20 17:27:58,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 2728 transitions. [2020-07-20 17:27:58,206 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 2728 transitions. Word has length 235 [2020-07-20 17:27:58,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:58,206 INFO L479 AbstractCegarLoop]: Abstraction has 2418 states and 2728 transitions. [2020-07-20 17:27:58,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:58,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 2728 transitions. [2020-07-20 17:27:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-20 17:27:58,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:58,216 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:58,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:58,430 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:58,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1787452681, now seen corresponding path program 1 times [2020-07-20 17:27:58,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:58,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952962752] [2020-07-20 17:27:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:58,623 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:58,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:58,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:58,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-20 17:27:58,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 123 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-20 17:27:58,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952962752] [2020-07-20 17:27:58,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:58,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:58,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55182769] [2020-07-20 17:27:58,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:58,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:58,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:58,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:58,785 INFO L87 Difference]: Start difference. First operand 2418 states and 2728 transitions. Second operand 6 states. [2020-07-20 17:27:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:59,274 INFO L93 Difference]: Finished difference Result 4521 states and 5117 transitions. [2020-07-20 17:27:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:27:59,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2020-07-20 17:27:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:59,285 INFO L225 Difference]: With dead ends: 4521 [2020-07-20 17:27:59,285 INFO L226 Difference]: Without dead ends: 2109 [2020-07-20 17:27:59,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 482 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:27:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-07-20 17:27:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2107. [2020-07-20 17:27:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2107 states. [2020-07-20 17:27:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2329 transitions. [2020-07-20 17:27:59,398 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2329 transitions. Word has length 244 [2020-07-20 17:27:59,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:59,403 INFO L479 AbstractCegarLoop]: Abstraction has 2107 states and 2329 transitions. [2020-07-20 17:27:59,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2329 transitions. [2020-07-20 17:27:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-20 17:27:59,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:59,411 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:59,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:59,625 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:59,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:59,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1449891231, now seen corresponding path program 1 times [2020-07-20 17:27:59,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:59,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339453774] [2020-07-20 17:27:59,626 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:59,764 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:59,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:59,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:59,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:59,838 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-20 17:27:59,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:59,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339453774] [2020-07-20 17:27:59,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:59,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:59,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460569292] [2020-07-20 17:27:59,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:59,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:59,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:59,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:59,841 INFO L87 Difference]: Start difference. First operand 2107 states and 2329 transitions. Second operand 3 states. [2020-07-20 17:28:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:00,422 INFO L93 Difference]: Finished difference Result 4931 states and 5512 transitions. [2020-07-20 17:28:00,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:00,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-20 17:28:00,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:00,424 INFO L225 Difference]: With dead ends: 4931 [2020-07-20 17:28:00,425 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:28:00,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:28:00,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:28:00,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:28:00,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:28:00,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2020-07-20 17:28:00,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:00,440 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:28:00,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:00,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:28:00,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:28:00,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:00,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:28:01,403 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2020-07-20 17:28:02,927 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-07-20 17:28:03,281 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-20 17:28:03,631 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-20 17:28:03,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:03,637 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)|)) [2020-07-20 17:28:03,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:03,637 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,637 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,637 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,638 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,638 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,638 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:28:03,638 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:28:03,638 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:28:03,638 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:28:03,639 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:28:03,640 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:03,641 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:03,642 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:28:03,643 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:28:03,644 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:28:03,645 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:28:03,646 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,647 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:28:03,648 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,649 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:28:03,650 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,651 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:28:03,652 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,653 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,654 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= 1 |old(~a19~0)|)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 (<= ~a28~0 8) .cse7)) (.cse8 (not (<= |old(~a17~0)| 7))) (.cse2 (not (<= |old(~a28~0)| 8))) (.cse15 (not (<= |old(~a28~0)| 7))) (.cse10 (not (<= |old(~a25~0)| 0))) (.cse11 (<= ~a25~0 0)) (.cse12 (not (<= 8 |old(~a17~0)|))) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse16 (<= ~a17~0 8)) (.cse9 (not .cse0)) (.cse13 (= 1 ~a11~0)) (.cse4 (not (<= 10 |old(~a28~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse14 (not (= 1 |old(~a11~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 (and .cse5 .cse6 (<= 10 ~a28~0) .cse7)) (or .cse1 .cse2 .cse8) (or .cse9 .cse10 .cse11 .cse4 .cse3) (or .cse2 .cse10 .cse11 .cse8) (or .cse9 .cse12 .cse10 .cse11 .cse3) (or .cse0 (and .cse5 .cse6 .cse13 .cse7) .cse8 .cse14) (or .cse0 (and .cse5 .cse6 .cse11 .cse7) .cse10 .cse8) (or .cse0 .cse13 .cse2 .cse3 .cse14) (or .cse15 .cse6 .cse3) (or .cse15 .cse13 .cse3 .cse14) (or .cse9 .cse13 .cse12 .cse3 .cse14) (or .cse9 (not (<= 11 |old(~a28~0)|)) (<= 11 ~a28~0) .cse3) (or .cse0 .cse10 (and .cse13 .cse6 .cse16 .cse11 .cse7) .cse3 .cse14) (or .cse9 .cse12 (and .cse6 .cse16 (<= 8 ~a17~0) .cse7) .cse3) (or .cse9 .cse13 .cse4 .cse3 .cse14)))) [2020-07-20 17:28:03,654 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,654 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,654 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,654 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:28:03,654 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:28:03,655 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,656 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:28:03,657 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,658 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:28:03,659 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:03,660 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:03,661 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:28:03,661 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:28:03,661 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:03,661 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 17:28:03,661 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:28:03,661 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:03,661 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-20 17:28:03,662 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0))) (let ((.cse3 (<= ~a17~0 7)) (.cse2 (= 1 ~a11~0)) (.cse1 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse4 (not .cse0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse1 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (and .cse1 (<= 10 ~a28~0)) (and .cse5 .cse3 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse1 .cse5 .cse4)))) [2020-07-20 17:28:03,662 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:03,662 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:03,662 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0))) (let ((.cse3 (<= ~a17~0 7)) (.cse2 (= 1 ~a11~0)) (.cse1 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse4 (not .cse0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse1 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (and .cse1 (<= 10 ~a28~0)) (and .cse5 .cse3 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse1 .cse5 .cse4)))) [2020-07-20 17:28:03,662 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:28:03,662 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:28:03,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:28:03 BoogieIcfgContainer [2020-07-20 17:28:03,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:28:03,687 INFO L168 Benchmark]: Toolchain (without parser) took 21814.62 ms. Allocated memory was 142.6 MB in the beginning and 545.8 MB in the end (delta: 403.2 MB). Free memory was 99.1 MB in the beginning and 239.9 MB in the end (delta: -140.8 MB). Peak memory consumption was 389.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:03,688 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.6 MB. Free memory is still 118.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 17:28:03,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.75 ms. Allocated memory was 142.6 MB in the beginning and 202.9 MB in the end (delta: 60.3 MB). Free memory was 98.7 MB in the beginning and 170.0 MB in the end (delta: -71.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:03,689 INFO L168 Benchmark]: Boogie Preprocessor took 152.81 ms. Allocated memory is still 202.9 MB. Free memory was 170.0 MB in the beginning and 164.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:03,690 INFO L168 Benchmark]: RCFGBuilder took 1395.57 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 164.7 MB in the beginning and 180.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:03,691 INFO L168 Benchmark]: TraceAbstraction took 19426.78 ms. Allocated memory was 233.8 MB in the beginning and 545.8 MB in the end (delta: 312.0 MB). Free memory was 180.2 MB in the beginning and 239.9 MB in the end (delta: -59.7 MB). Peak memory consumption was 379.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:03,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.6 MB. Free memory is still 118.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.75 ms. Allocated memory was 142.6 MB in the beginning and 202.9 MB in the end (delta: 60.3 MB). Free memory was 98.7 MB in the beginning and 170.0 MB in the end (delta: -71.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.81 ms. Allocated memory is still 202.9 MB. Free memory was 170.0 MB in the beginning and 164.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1395.57 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 164.7 MB in the beginning and 180.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19426.78 ms. Allocated memory was 233.8 MB in the beginning and 545.8 MB in the end (delta: 312.0 MB). Free memory was 180.2 MB in the beginning and 239.9 MB in the end (delta: -59.7 MB). Peak memory consumption was 379.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 595]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || (a17 <= 8 && a28 <= 8)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || !(8 <= \old(a17))) || ((1 == a11 && a17 <= 7) && !(1 == a19))) || (a17 <= 8 && 10 <= a28)) || ((a25 <= 0 && a17 <= 7) && !(1 == a19))) || !(\old(a17) <= 8)) || (((1 == a11 && a17 <= 8) && a25 <= 0) && !(1 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.3s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1305 SDtfs, 2564 SDslu, 459 SDs, 0 SdLazy, 6219 SolverSat, 1180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3118 GetRequests, 3075 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4371occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 2395 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 174 PreInvPairs, 230 NumberOfFragments, 557 HoareAnnotationTreeSize, 174 FomulaSimplifications, 1871 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2514 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2228 NumberOfCodeBlocks, 2228 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 3096 ConstructedInterpolants, 0 QuantifiedInterpolants, 1164194 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4915 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 1228/1278 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...