/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:33:23,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:33:23,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:33:23,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:33:23,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:33:23,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:33:23,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:33:23,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:33:23,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:33:23,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:33:23,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:33:23,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:33:23,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:33:23,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:33:23,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:33:23,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:33:23,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:33:23,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:33:23,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:33:24,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:33:24,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:33:24,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:33:24,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:33:24,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:33:24,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 01:33:24,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 01:33:24,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 01:33:24,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 01:33:24,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 01:33:24,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 01:33:24,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 01:33:24,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 01:33:24,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 01:33:24,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 01:33:24,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 01:33:24,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 01:33:24,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 01:33:24,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 01:33:24,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:33:24,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:33:24,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:33:24,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:33:24,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:33:24,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:33:24,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:33:24,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:33:24,080 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:33:24,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:33:24,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:33:24,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:33:24,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:33:24,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:33:24,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:33:24,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:33:24,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:33:24,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:33:24,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:33:24,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:33:24,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:33:24,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:33:24,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:33:24,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:33:24,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:33:24,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:33:24,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:33:24,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:33:24,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:33:24,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:33:24,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:24,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:33:24,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:33:24,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:33:24,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:33:24,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:33:24,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:33:24,435 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:33:24,435 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:33:24,436 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-21 01:33:24,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4fab5f7/53780b9f69a14d629faa05643743bf85/FLAG705fd2d9d [2020-07-21 01:33:25,326 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:33:25,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-21 01:33:25,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4fab5f7/53780b9f69a14d629faa05643743bf85/FLAG705fd2d9d [2020-07-21 01:33:25,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4fab5f7/53780b9f69a14d629faa05643743bf85 [2020-07-21 01:33:25,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:33:25,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:33:25,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:33:25,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:33:25,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:33:25,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:33:25" (1/1) ... [2020-07-21 01:33:25,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a07edf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:25, skipping insertion in model container [2020-07-21 01:33:25,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:33:25" (1/1) ... [2020-07-21 01:33:25,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:33:25,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:33:26,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:33:26,300 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:33:26,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:33:26,491 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:33:26,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26 WrapperNode [2020-07-21 01:33:26,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:33:26,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:33:26,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:33:26,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:33:26,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... [2020-07-21 01:33:26,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:33:26,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:33:26,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:33:26,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:33:26,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:33:26,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:33:26,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:33:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:33:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:33:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:33:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:33:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:33:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:33:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:33:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:33:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:33:28,902 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:33:28,903 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:33:28,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:33:28 BoogieIcfgContainer [2020-07-21 01:33:28,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:33:28,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:33:28,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:33:28,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:33:28,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:33:25" (1/3) ... [2020-07-21 01:33:28,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb6c293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:33:28, skipping insertion in model container [2020-07-21 01:33:28,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:33:26" (2/3) ... [2020-07-21 01:33:28,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb6c293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:33:28, skipping insertion in model container [2020-07-21 01:33:28,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:33:28" (3/3) ... [2020-07-21 01:33:28,926 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-07-21 01:33:28,943 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:33:28,956 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:33:28,981 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:33:29,022 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:33:29,023 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:33:29,023 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:33:29,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:33:29,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:33:29,024 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:33:29,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:33:29,024 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:33:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-21 01:33:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 01:33:29,076 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:29,078 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] [2020-07-21 01:33:29,079 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:29,089 INFO L82 PathProgramCache]: Analyzing trace with hash -281448013, now seen corresponding path program 1 times [2020-07-21 01:33:29,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:29,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554770740] [2020-07-21 01:33:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:29,279 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:33:29,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:29,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:33:29,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:33:29,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:29,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554770740] [2020-07-21 01:33:29,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:29,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:33:29,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644194944] [2020-07-21 01:33:29,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:33:29,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:29,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:33:29,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:33:29,650 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-21 01:33:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:31,591 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-21 01:33:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:33:31,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 01:33:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:31,622 INFO L225 Difference]: With dead ends: 688 [2020-07-21 01:33:31,623 INFO L226 Difference]: Without dead ends: 372 [2020-07-21 01:33:31,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:33:31,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-21 01:33:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-21 01:33:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-21 01:33:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 560 transitions. [2020-07-21 01:33:31,736 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 560 transitions. Word has length 56 [2020-07-21 01:33:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:31,737 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 560 transitions. [2020-07-21 01:33:31,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:33:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 560 transitions. [2020-07-21 01:33:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 01:33:31,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:31,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:31,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:31,961 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:31,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:31,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1442467785, now seen corresponding path program 1 times [2020-07-21 01:33:31,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:31,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676453452] [2020-07-21 01:33:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:32,116 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:32,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:32,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:33:32,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:33:32,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:32,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676453452] [2020-07-21 01:33:32,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:32,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:33:32,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119581475] [2020-07-21 01:33:32,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:33:32,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:32,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:33:32,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:33:32,234 INFO L87 Difference]: Start difference. First operand 372 states and 560 transitions. Second operand 5 states. [2020-07-21 01:33:34,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:34,002 INFO L93 Difference]: Finished difference Result 1122 states and 1722 transitions. [2020-07-21 01:33:34,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:33:34,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-07-21 01:33:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:34,017 INFO L225 Difference]: With dead ends: 1122 [2020-07-21 01:33:34,018 INFO L226 Difference]: Without dead ends: 756 [2020-07-21 01:33:34,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:33:34,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-07-21 01:33:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 744. [2020-07-21 01:33:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-07-21 01:33:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1011 transitions. [2020-07-21 01:33:34,113 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1011 transitions. Word has length 135 [2020-07-21 01:33:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:34,114 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 1011 transitions. [2020-07-21 01:33:34,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:33:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1011 transitions. [2020-07-21 01:33:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 01:33:34,120 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:34,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:34,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:34,335 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:34,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:34,338 INFO L82 PathProgramCache]: Analyzing trace with hash 123351809, now seen corresponding path program 1 times [2020-07-21 01:33:34,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:34,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498001330] [2020-07-21 01:33:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:34,427 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:34,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:34,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 01:33:34,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:34,515 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-21 01:33:34,516 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:33:34,518 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:33:34,520 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:33:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:33:34,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:34,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498001330] [2020-07-21 01:33:34,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:34,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 01:33:34,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031114252] [2020-07-21 01:33:34,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:33:34,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:34,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:33:34,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:33:34,683 INFO L87 Difference]: Start difference. First operand 744 states and 1011 transitions. Second operand 6 states. [2020-07-21 01:33:36,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:36,925 INFO L93 Difference]: Finished difference Result 1934 states and 2592 transitions. [2020-07-21 01:33:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 01:33:36,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2020-07-21 01:33:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:36,936 INFO L225 Difference]: With dead ends: 1934 [2020-07-21 01:33:36,936 INFO L226 Difference]: Without dead ends: 1196 [2020-07-21 01:33:36,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:33:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2020-07-21 01:33:36,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1122. [2020-07-21 01:33:36,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-07-21 01:33:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1463 transitions. [2020-07-21 01:33:36,985 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1463 transitions. Word has length 139 [2020-07-21 01:33:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:36,986 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1463 transitions. [2020-07-21 01:33:36,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:33:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1463 transitions. [2020-07-21 01:33:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 01:33:36,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:36,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:37,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:37,206 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:37,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:37,207 INFO L82 PathProgramCache]: Analyzing trace with hash 502777661, now seen corresponding path program 1 times [2020-07-21 01:33:37,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:37,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865091952] [2020-07-21 01:33:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:37,316 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:37,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:37,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:33:37,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:37,393 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:33:37,393 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:33:37,396 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:33:37,420 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:33:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:33:37,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:37,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865091952] [2020-07-21 01:33:37,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:37,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:33:37,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874171339] [2020-07-21 01:33:37,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:33:37,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:37,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:33:37,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:33:37,545 INFO L87 Difference]: Start difference. First operand 1122 states and 1463 transitions. Second operand 5 states. [2020-07-21 01:33:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:39,396 INFO L93 Difference]: Finished difference Result 2260 states and 2967 transitions. [2020-07-21 01:33:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:33:39,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 189 [2020-07-21 01:33:39,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:39,411 INFO L225 Difference]: With dead ends: 2260 [2020-07-21 01:33:39,411 INFO L226 Difference]: Without dead ends: 1144 [2020-07-21 01:33:39,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:33:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2020-07-21 01:33:39,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1122. [2020-07-21 01:33:39,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-07-21 01:33:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1380 transitions. [2020-07-21 01:33:39,470 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1380 transitions. Word has length 189 [2020-07-21 01:33:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:39,471 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1380 transitions. [2020-07-21 01:33:39,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:33:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1380 transitions. [2020-07-21 01:33:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-07-21 01:33:39,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:39,482 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:39,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:39,696 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:39,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:39,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1541197282, now seen corresponding path program 1 times [2020-07-21 01:33:39,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:39,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698538916] [2020-07-21 01:33:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:40,138 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:33:40,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:40,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 01:33:40,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-07-21 01:33:40,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:40,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698538916] [2020-07-21 01:33:40,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:40,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:33:40,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373742097] [2020-07-21 01:33:40,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:33:40,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:40,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:33:40,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:33:40,352 INFO L87 Difference]: Start difference. First operand 1122 states and 1380 transitions. Second operand 5 states. [2020-07-21 01:33:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:42,055 INFO L93 Difference]: Finished difference Result 2988 states and 3776 transitions. [2020-07-21 01:33:42,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:33:42,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 354 [2020-07-21 01:33:42,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:42,073 INFO L225 Difference]: With dead ends: 2988 [2020-07-21 01:33:42,073 INFO L226 Difference]: Without dead ends: 1872 [2020-07-21 01:33:42,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:33:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2020-07-21 01:33:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1676. [2020-07-21 01:33:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2020-07-21 01:33:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2049 transitions. [2020-07-21 01:33:42,145 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2049 transitions. Word has length 354 [2020-07-21 01:33:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:42,146 INFO L479 AbstractCegarLoop]: Abstraction has 1676 states and 2049 transitions. [2020-07-21 01:33:42,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:33:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2049 transitions. [2020-07-21 01:33:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-07-21 01:33:42,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:42,159 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:33:42,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:42,373 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:42,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:42,374 INFO L82 PathProgramCache]: Analyzing trace with hash 507647054, now seen corresponding path program 1 times [2020-07-21 01:33:42,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:42,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765250404] [2020-07-21 01:33:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:42,629 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:42,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:42,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:33:42,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 524 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-07-21 01:33:42,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:33:43,045 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:33:43,046 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:43,053 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:43,058 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 351 proven. 73 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2020-07-21 01:33:43,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765250404] [2020-07-21 01:33:43,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:33:43,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:33:43,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700335940] [2020-07-21 01:33:43,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:33:43,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:43,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:33:43,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:33:43,322 INFO L87 Difference]: Start difference. First operand 1676 states and 2049 transitions. Second operand 7 states. [2020-07-21 01:33:45,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:45,696 INFO L93 Difference]: Finished difference Result 4286 states and 5407 transitions. [2020-07-21 01:33:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:33:45,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 427 [2020-07-21 01:33:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:45,712 INFO L225 Difference]: With dead ends: 4286 [2020-07-21 01:33:45,712 INFO L226 Difference]: Without dead ends: 2616 [2020-07-21 01:33:45,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 862 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:33:45,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2020-07-21 01:33:45,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2250. [2020-07-21 01:33:45,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-07-21 01:33:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2882 transitions. [2020-07-21 01:33:45,811 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2882 transitions. Word has length 427 [2020-07-21 01:33:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:45,812 INFO L479 AbstractCegarLoop]: Abstraction has 2250 states and 2882 transitions. [2020-07-21 01:33:45,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:33:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2882 transitions. [2020-07-21 01:33:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-07-21 01:33:45,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:45,823 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:46,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:46,038 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:46,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:46,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1567093203, now seen corresponding path program 1 times [2020-07-21 01:33:46,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:46,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295327335] [2020-07-21 01:33:46,040 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:46,256 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:46,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:46,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-21 01:33:46,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:46,827 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 44 [2020-07-21 01:33:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 397 proven. 169 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-07-21 01:33:47,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:33:47,464 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,469 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,472 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,474 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,476 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,479 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,480 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,482 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,485 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,487 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,490 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,494 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,495 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,499 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,501 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,502 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,504 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,506 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,509 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,517 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,523 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,529 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,530 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,533 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,535 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,536 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,540 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,545 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,548 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,559 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,563 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,565 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,567 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,570 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,577 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,578 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,582 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,592 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,599 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,601 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,602 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,604 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,606 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,607 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,611 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,619 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,621 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,628 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,651 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,653 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,654 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,656 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,657 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,658 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,661 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,663 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,665 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,668 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,669 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,670 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,673 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,674 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,675 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,676 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,677 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,679 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,680 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,681 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,683 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,684 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,685 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,687 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,689 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,690 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,691 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 373 proven. 83 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-07-21 01:33:47,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295327335] [2020-07-21 01:33:47,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:33:47,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-21 01:33:47,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646827285] [2020-07-21 01:33:47,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:33:47,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:47,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:33:47,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:33:47,927 INFO L87 Difference]: Start difference. First operand 2250 states and 2882 transitions. Second operand 11 states. [2020-07-21 01:33:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:52,004 INFO L93 Difference]: Finished difference Result 6916 states and 9342 transitions. [2020-07-21 01:33:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 01:33:52,006 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 442 [2020-07-21 01:33:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:52,036 INFO L225 Difference]: With dead ends: 6916 [2020-07-21 01:33:52,036 INFO L226 Difference]: Without dead ends: 4672 [2020-07-21 01:33:52,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 877 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-07-21 01:33:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2020-07-21 01:33:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4666. [2020-07-21 01:33:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4666 states. [2020-07-21 01:33:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6228 transitions. [2020-07-21 01:33:52,207 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6228 transitions. Word has length 442 [2020-07-21 01:33:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:52,208 INFO L479 AbstractCegarLoop]: Abstraction has 4666 states and 6228 transitions. [2020-07-21 01:33:52,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:33:52,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6228 transitions. [2020-07-21 01:33:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-07-21 01:33:52,217 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:52,218 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:33:52,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:52,430 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:52,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:52,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1603640885, now seen corresponding path program 1 times [2020-07-21 01:33:52,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:52,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199774490] [2020-07-21 01:33:52,433 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:52,869 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:52,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:52,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 32 conjunts are in the unsatisfiable core [2020-07-21 01:33:52,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:53,188 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 50 [2020-07-21 01:33:53,303 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-07-21 01:33:53,304 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 01:33:53,310 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:33:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 397 proven. 220 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-07-21 01:33:53,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:33:54,080 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-07-21 01:33:54,125 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:33:54,126 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:33:54,127 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:33:54,128 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:33:54,128 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:33:54,129 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:33:54,131 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:33:54,131 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:33:54,132 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:33:54,432 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,434 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,435 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,436 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,437 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,437 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,438 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,439 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,440 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,441 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,443 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,445 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,445 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,446 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,448 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,448 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,449 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,451 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,452 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,452 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,454 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,455 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,456 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,457 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,458 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,459 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,460 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,460 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,462 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,463 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,464 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,465 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,468 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,469 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,475 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,475 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,476 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,481 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,483 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,485 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,487 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,493 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,496 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,498 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,499 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,501 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,504 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,507 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,512 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,527 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,528 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,528 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,529 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,530 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,531 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,532 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,534 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,534 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,536 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,537 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,539 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,546 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,548 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,552 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,557 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,559 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,559 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,562 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,562 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,565 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,567 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,567 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,568 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,571 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,571 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,574 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,574 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,575 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,585 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,586 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,587 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,588 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,590 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,591 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,591 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,592 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,595 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,595 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,597 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,599 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,600 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,601 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,602 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,603 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,603 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,604 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,626 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,626 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,627 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,628 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,628 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,629 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,630 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,631 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,632 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,634 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,634 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,635 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,636 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,637 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,637 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,638 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,640 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,641 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,642 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,642 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,643 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,644 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,647 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,648 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,649 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,650 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,651 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:54,653 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 424 proven. 83 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-07-21 01:33:55,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199774490] [2020-07-21 01:33:55,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:33:55,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 13 [2020-07-21 01:33:55,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025330794] [2020-07-21 01:33:55,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 01:33:55,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:55,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 01:33:55,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:33:55,314 INFO L87 Difference]: Start difference. First operand 4666 states and 6228 transitions. Second operand 13 states. [2020-07-21 01:33:56,997 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-07-21 01:33:59,024 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-07-21 01:34:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:00,467 INFO L93 Difference]: Finished difference Result 8976 states and 12110 transitions. [2020-07-21 01:34:00,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-21 01:34:00,469 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 534 [2020-07-21 01:34:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:00,499 INFO L225 Difference]: With dead ends: 8976 [2020-07-21 01:34:00,500 INFO L226 Difference]: Without dead ends: 4868 [2020-07-21 01:34:00,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1103 GetRequests, 1066 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2020-07-21 01:34:00,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2020-07-21 01:34:00,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4676. [2020-07-21 01:34:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4676 states. [2020-07-21 01:34:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4676 states to 4676 states and 6226 transitions. [2020-07-21 01:34:00,692 INFO L78 Accepts]: Start accepts. Automaton has 4676 states and 6226 transitions. Word has length 534 [2020-07-21 01:34:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:00,693 INFO L479 AbstractCegarLoop]: Abstraction has 4676 states and 6226 transitions. [2020-07-21 01:34:00,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 01:34:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4676 states and 6226 transitions. [2020-07-21 01:34:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2020-07-21 01:34:00,706 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:00,707 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:34:00,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:00,922 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:00,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1683628237, now seen corresponding path program 1 times [2020-07-21 01:34:00,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:00,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741184115] [2020-07-21 01:34:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:01,290 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:01,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:01,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:01,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 864 proven. 2 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2020-07-21 01:34:01,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:34:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 594 proven. 83 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2020-07-21 01:34:02,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741184115] [2020-07-21 01:34:02,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:34:02,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:34:02,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19749289] [2020-07-21 01:34:02,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:34:02,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:02,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:34:02,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:34:02,043 INFO L87 Difference]: Start difference. First operand 4676 states and 6226 transitions. Second operand 7 states. [2020-07-21 01:34:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:05,001 INFO L93 Difference]: Finished difference Result 11186 states and 15625 transitions. [2020-07-21 01:34:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:34:05,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 589 [2020-07-21 01:34:05,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:05,050 INFO L225 Difference]: With dead ends: 11186 [2020-07-21 01:34:05,051 INFO L226 Difference]: Without dead ends: 7070 [2020-07-21 01:34:05,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1176 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:34:05,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7070 states. [2020-07-21 01:34:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7070 to 7070. [2020-07-21 01:34:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7070 states. [2020-07-21 01:34:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 9189 transitions. [2020-07-21 01:34:05,307 INFO L78 Accepts]: Start accepts. Automaton has 7070 states and 9189 transitions. Word has length 589 [2020-07-21 01:34:05,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:05,308 INFO L479 AbstractCegarLoop]: Abstraction has 7070 states and 9189 transitions. [2020-07-21 01:34:05,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:34:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7070 states and 9189 transitions. [2020-07-21 01:34:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2020-07-21 01:34:05,331 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:05,332 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:34:05,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:05,549 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:05,550 INFO L82 PathProgramCache]: Analyzing trace with hash 599863032, now seen corresponding path program 1 times [2020-07-21 01:34:05,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:05,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366250064] [2020-07-21 01:34:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:05,848 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:34:05,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:05,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-21 01:34:05,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:06,133 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-07-21 01:34:06,135 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-07-21 01:34:06,136 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-07-21 01:34:06,137 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-21 01:34:06,138 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 01:34:06,139 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-21 01:34:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 1286 proven. 2 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2020-07-21 01:34:06,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:34:06,920 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:34:06,921 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:34:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 858 proven. 86 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2020-07-21 01:34:07,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366250064] [2020-07-21 01:34:07,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:34:07,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-21 01:34:07,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511036213] [2020-07-21 01:34:07,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:34:07,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:07,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:34:07,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:34:07,557 INFO L87 Difference]: Start difference. First operand 7070 states and 9189 transitions. Second operand 12 states. [2020-07-21 01:34:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:09,698 INFO L93 Difference]: Finished difference Result 14137 states and 18326 transitions. [2020-07-21 01:34:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 01:34:09,699 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 744 [2020-07-21 01:34:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:09,736 INFO L225 Difference]: With dead ends: 14137 [2020-07-21 01:34:09,736 INFO L226 Difference]: Without dead ends: 6723 [2020-07-21 01:34:09,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1495 GetRequests, 1479 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-07-21 01:34:09,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6723 states. [2020-07-21 01:34:09,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6723 to 6672. [2020-07-21 01:34:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6672 states. [2020-07-21 01:34:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6672 states to 6672 states and 7577 transitions. [2020-07-21 01:34:09,962 INFO L78 Accepts]: Start accepts. Automaton has 6672 states and 7577 transitions. Word has length 744 [2020-07-21 01:34:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:09,965 INFO L479 AbstractCegarLoop]: Abstraction has 6672 states and 7577 transitions. [2020-07-21 01:34:09,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:34:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6672 states and 7577 transitions. [2020-07-21 01:34:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-21 01:34:09,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:09,991 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:34:10,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:10,199 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:10,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1789439753, now seen corresponding path program 1 times [2020-07-21 01:34:10,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:10,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375835834] [2020-07-21 01:34:10,200 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:10,679 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:34:10,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:10,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:34:10,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:10,735 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:34:10,736 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:34:10,737 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:34:10,765 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:34:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 1642 proven. 2 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2020-07-21 01:34:11,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:34:11,385 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:34:11,385 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:34:11,386 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:34:11,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:11,386 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:34:11,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,387 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 1] term [2020-07-21 01:34:11,388 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,388 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 1] term [2020-07-21 01:34:11,388 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,389 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:34:11,389 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,390 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,390 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:11,412 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,414 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:11,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:11,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 799 proven. 217 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked. [2020-07-21 01:34:12,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375835834] [2020-07-21 01:34:12,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:34:12,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:34:12,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42556456] [2020-07-21 01:34:12,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:34:12,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:12,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:34:12,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:34:12,525 INFO L87 Difference]: Start difference. First operand 6672 states and 7577 transitions. Second operand 7 states. [2020-07-21 01:34:15,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:15,533 INFO L93 Difference]: Finished difference Result 13548 states and 15482 transitions. [2020-07-21 01:34:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:34:15,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 871 [2020-07-21 01:34:15,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:15,575 INFO L225 Difference]: With dead ends: 13548 [2020-07-21 01:34:15,575 INFO L226 Difference]: Without dead ends: 7064 [2020-07-21 01:34:15,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1755 GetRequests, 1742 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:34:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7064 states. [2020-07-21 01:34:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7064 to 6492. [2020-07-21 01:34:15,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6492 states. [2020-07-21 01:34:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6492 states to 6492 states and 7280 transitions. [2020-07-21 01:34:15,876 INFO L78 Accepts]: Start accepts. Automaton has 6492 states and 7280 transitions. Word has length 871 [2020-07-21 01:34:15,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:15,878 INFO L479 AbstractCegarLoop]: Abstraction has 6492 states and 7280 transitions. [2020-07-21 01:34:15,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:34:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 6492 states and 7280 transitions. [2020-07-21 01:34:15,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2020-07-21 01:34:15,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:15,903 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:34:16,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:16,118 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:16,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:16,119 INFO L82 PathProgramCache]: Analyzing trace with hash -543388230, now seen corresponding path program 1 times [2020-07-21 01:34:16,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:16,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606620555] [2020-07-21 01:34:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:16,683 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:34:16,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:16,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:16,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2388 backedges. 1545 proven. 2 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2020-07-21 01:34:17,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:34:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2388 backedges. 686 proven. 150 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2020-07-21 01:34:17,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606620555] [2020-07-21 01:34:17,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:34:17,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:34:17,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663671961] [2020-07-21 01:34:17,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:34:17,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:17,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:34:17,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:34:17,577 INFO L87 Difference]: Start difference. First operand 6492 states and 7280 transitions. Second operand 6 states. [2020-07-21 01:34:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:18,944 INFO L93 Difference]: Finished difference Result 13164 states and 14904 transitions. [2020-07-21 01:34:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:34:18,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 892 [2020-07-21 01:34:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:18,971 INFO L225 Difference]: With dead ends: 13164 [2020-07-21 01:34:18,971 INFO L226 Difference]: Without dead ends: 7228 [2020-07-21 01:34:18,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1789 GetRequests, 1780 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:34:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7228 states. [2020-07-21 01:34:19,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7228 to 7228. [2020-07-21 01:34:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7228 states. [2020-07-21 01:34:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7228 states to 7228 states and 8090 transitions. [2020-07-21 01:34:19,159 INFO L78 Accepts]: Start accepts. Automaton has 7228 states and 8090 transitions. Word has length 892 [2020-07-21 01:34:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:19,160 INFO L479 AbstractCegarLoop]: Abstraction has 7228 states and 8090 transitions. [2020-07-21 01:34:19,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:34:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7228 states and 8090 transitions. [2020-07-21 01:34:19,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2020-07-21 01:34:19,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:19,180 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:34:19,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:19,395 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:19,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:19,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1096582534, now seen corresponding path program 1 times [2020-07-21 01:34:19,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:19,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458317575] [2020-07-21 01:34:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:19,876 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:34:19,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:19,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:34:19,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:19,973 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 01:34:19,973 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:34:19,976 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:34:20,017 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:34:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2675 backedges. 2157 proven. 10 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-07-21 01:34:20,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:34:20,898 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:34:20,899 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:20,900 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:34:20,901 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:34:20,957 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:20,959 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:20,960 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:20,961 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:34:20,961 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:21,112 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:21,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:21,184 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:21,185 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2675 backedges. 1049 proven. 644 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2020-07-21 01:34:22,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458317575] [2020-07-21 01:34:22,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:34:22,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-21 01:34:22,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770447589] [2020-07-21 01:34:22,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 01:34:22,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:22,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 01:34:22,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:34:22,972 INFO L87 Difference]: Start difference. First operand 7228 states and 8090 transitions. Second operand 13 states. [2020-07-21 01:34:27,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:27,688 INFO L93 Difference]: Finished difference Result 14288 states and 16165 transitions. [2020-07-21 01:34:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-21 01:34:27,689 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 978 [2020-07-21 01:34:27,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:27,724 INFO L225 Difference]: With dead ends: 14288 [2020-07-21 01:34:27,725 INFO L226 Difference]: Without dead ends: 7616 [2020-07-21 01:34:27,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1989 GetRequests, 1960 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-07-21 01:34:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7616 states. [2020-07-21 01:34:27,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7616 to 7596. [2020-07-21 01:34:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7596 states. [2020-07-21 01:34:27,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7596 states to 7596 states and 8457 transitions. [2020-07-21 01:34:27,967 INFO L78 Accepts]: Start accepts. Automaton has 7596 states and 8457 transitions. Word has length 978 [2020-07-21 01:34:27,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:27,969 INFO L479 AbstractCegarLoop]: Abstraction has 7596 states and 8457 transitions. [2020-07-21 01:34:27,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 01:34:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7596 states and 8457 transitions. [2020-07-21 01:34:27,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2020-07-21 01:34:27,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:27,993 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:34:28,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:28,210 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:28,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:28,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1699096822, now seen corresponding path program 1 times [2020-07-21 01:34:28,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:28,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494952266] [2020-07-21 01:34:28,211 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:28,980 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:28,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:28,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:28,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3017 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2020-07-21 01:34:29,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:34:29,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494952266] [2020-07-21 01:34:29,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:34:29,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:34:29,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175226800] [2020-07-21 01:34:29,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:34:29,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:34:29,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:29,446 INFO L87 Difference]: Start difference. First operand 7596 states and 8457 transitions. Second operand 3 states. [2020-07-21 01:34:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:30,464 INFO L93 Difference]: Finished difference Result 8690 states and 9851 transitions. [2020-07-21 01:34:30,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:34:30,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 991 [2020-07-21 01:34:30,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:30,502 INFO L225 Difference]: With dead ends: 8690 [2020-07-21 01:34:30,502 INFO L226 Difference]: Without dead ends: 8688 [2020-07-21 01:34:30,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 989 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8688 states. [2020-07-21 01:34:30,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8688 to 7778. [2020-07-21 01:34:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7778 states. [2020-07-21 01:34:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 8727 transitions. [2020-07-21 01:34:30,704 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 8727 transitions. Word has length 991 [2020-07-21 01:34:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:30,705 INFO L479 AbstractCegarLoop]: Abstraction has 7778 states and 8727 transitions. [2020-07-21 01:34:30,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:34:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 8727 transitions. [2020-07-21 01:34:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2020-07-21 01:34:30,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:30,743 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:34:30,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:30,958 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:30,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:30,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1573002785, now seen corresponding path program 1 times [2020-07-21 01:34:30,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:30,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958974125] [2020-07-21 01:34:30,961 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:31,875 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:31,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:31,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:31,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3261 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 2848 trivial. 0 not checked. [2020-07-21 01:34:32,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:34:32,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958974125] [2020-07-21 01:34:32,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:34:32,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:34:32,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93658062] [2020-07-21 01:34:32,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:34:32,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:32,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:34:32,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:32,637 INFO L87 Difference]: Start difference. First operand 7778 states and 8727 transitions. Second operand 3 states. [2020-07-21 01:34:33,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:33,771 INFO L93 Difference]: Finished difference Result 15544 states and 17554 transitions. [2020-07-21 01:34:33,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:34:33,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1074 [2020-07-21 01:34:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:33,775 INFO L225 Difference]: With dead ends: 15544 [2020-07-21 01:34:33,775 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:34:33,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1073 GetRequests, 1072 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:34:33,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:34:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:34:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:34:33,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1074 [2020-07-21 01:34:33,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:33,800 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:34:33,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:34:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:34:33,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:34:34,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:34,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:34:35,144 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 108 [2020-07-21 01:34:35,395 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 108 [2020-07-21 01:34:35,549 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 30 [2020-07-21 01:34:37,108 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 281 DAG size of output: 67 [2020-07-21 01:34:37,650 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 50 [2020-07-21 01:34:38,086 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 50 [2020-07-21 01:34:38,093 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:38,094 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-21 01:34:38,094 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:38,094 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-21 01:34:38,094 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-21 01:34:38,094 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,095 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,095 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,095 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-21 01:34:38,095 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:34:38,095 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:34:38,095 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,096 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-21 01:34:38,097 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,098 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,099 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-21 01:34:38,099 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:34:38,099 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:34:38,099 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:34:38,099 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-21 01:34:38,099 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:34:38,100 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,101 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-21 01:34:38,102 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-21 01:34:38,103 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,104 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-21 01:34:38,105 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-21 01:34:38,105 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:34:38,105 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:34:38,105 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:34:38,105 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-21 01:34:38,105 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse4 (= ~a12~0 |old(~a12~0)|)) (.cse7 (= ~a24~0 |old(~a24~0)|)) (.cse5 (= ~a21~0 |old(~a21~0)|)) (.cse6 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (<= 0 |old(~a12~0)|))) (.cse2 (not (<= |old(~a15~0)| 5))) (.cse1 (and .cse4 .cse7 .cse5 .cse6)) (.cse3 (and .cse4 (<= ~a21~0 |old(~a21~0)|) .cse7 .cse6 (<= |old(~a21~0)| ~a21~0)))) (and (or .cse0 .cse1 (not (<= |old(~a21~0)| 7))) (or (not (<= (+ |old(~a12~0)| 49) 0)) .cse2 .cse3 (not (<= |old(~a21~0)| 8))) (or .cse1 (not (<= 7 |old(~a15~0)|))) (or (not (= 1 |old(~a24~0)|)) (not (= 6 |old(~a21~0)|)) (and .cse4 (= 1 ~a24~0) .cse5 .cse6) (not (= 5 |old(~a15~0)|))) (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 10 |old(~a21~0)|)) (not (<= |old(~a12~0)| 11)) (not (< 0 (+ |old(~a12~0)| 43)))) (or (= 10 |old(~a21~0)|) .cse3 (not (< 6 |old(~a21~0)|)))))) [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:34:38,106 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,107 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,108 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-21 01:34:38,108 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-21 01:34:38,108 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:34:38,108 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:34:38,108 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:34:38,108 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:34:38,109 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,110 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-21 01:34:38,111 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-21 01:34:38,112 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-21 01:34:38,113 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,114 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,115 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,116 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-21 01:34:38,117 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-21 01:34:38,118 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,119 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-21 01:34:38,120 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:34:38,121 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:34:38,122 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,123 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:38,124 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (+ ~a12~0 49) 0) (= 8 ~a15~0) (= 7 ~a21~0) (= 1 ~a24~0)) [2020-07-21 01:34:38,125 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:34:38,125 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:38,125 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (not (= 8 |old(~a15~0)|)) (and (= (+ ~a12~0 49) 0) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a24~0) (= ~a15~0 |old(~a15~0)|) (<= |old(~a21~0)| ~a21~0))) [2020-07-21 01:34:38,125 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-21 01:34:38,125 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= 0 ~a12~0)) (.cse2 (<= ~a15~0 5)) (.cse1 (<= ~a21~0 7))) (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (<= 7 ~a15~0) (not (= 0 (+ |old(~a12~0)| 49))) (not (= 8 |old(~a15~0)|)) (and .cse0 .cse1) (and (= 6 ~a21~0) (= 1 ~a24~0) (= 5 ~a15~0)) (and .cse2 .cse0) (and (< 6 ~a21~0) (not (= 10 ~a21~0))) (and (<= ~a12~0 11) (< 0 (+ ~a12~0 43)) (<= 10 ~a21~0)) (and (<= (+ ~a12~0 49) 0) .cse2 .cse1))) [2020-07-21 01:34:38,126 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-21 01:34:38,126 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-21 01:34:38,126 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= 0 ~a12~0)) (.cse2 (<= ~a15~0 5)) (.cse1 (<= ~a21~0 7))) (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (<= 7 ~a15~0) (not (= 0 (+ |old(~a12~0)| 49))) (not (= 8 |old(~a15~0)|)) (and .cse0 .cse1) (and (= 6 ~a21~0) (= 1 ~a24~0) (= 5 ~a15~0)) (and .cse2 .cse0) (and (< 6 ~a21~0) (not (= 10 ~a21~0))) (and (<= ~a12~0 11) (< 0 (+ ~a12~0 43)) (<= 10 ~a21~0)) (and (<= (+ ~a12~0 49) 0) .cse2 .cse1))) [2020-07-21 01:34:38,126 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-21 01:34:38,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:34:38 BoogieIcfgContainer [2020-07-21 01:34:38,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:34:38,160 INFO L168 Benchmark]: Toolchain (without parser) took 72704.33 ms. Allocated memory was 144.2 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 100.0 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 533.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:38,161 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:34:38,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1034.86 ms. Allocated memory was 144.2 MB in the beginning and 206.6 MB in the end (delta: 62.4 MB). Free memory was 99.6 MB in the beginning and 167.4 MB in the end (delta: -67.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:38,163 INFO L168 Benchmark]: Boogie Preprocessor took 248.72 ms. Allocated memory is still 206.6 MB. Free memory was 167.4 MB in the beginning and 161.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:38,164 INFO L168 Benchmark]: RCFGBuilder took 2167.62 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 161.4 MB in the beginning and 156.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:38,165 INFO L168 Benchmark]: TraceAbstraction took 69245.00 ms. Allocated memory was 237.0 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 156.5 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 496.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:38,168 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 144.2 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1034.86 ms. Allocated memory was 144.2 MB in the beginning and 206.6 MB in the end (delta: 62.4 MB). Free memory was 99.6 MB in the beginning and 167.4 MB in the end (delta: -67.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 248.72 ms. Allocated memory is still 206.6 MB. Free memory was 167.4 MB in the beginning and 161.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2167.62 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 161.4 MB in the beginning and 156.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 69245.00 ms. Allocated memory was 237.0 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 156.5 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 496.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((!(7 == \old(a21)) || !(1 == \old(a24))) || 7 <= a15) || !(0 == \old(a12) + 49)) || !(8 == \old(a15))) || (0 <= a12 && a21 <= 7)) || ((6 == a21 && 1 == a24) && 5 == a15)) || (a15 <= 5 && 0 <= a12)) || (6 < a21 && !(10 == a21))) || ((a12 <= 11 && 0 < a12 + 43) && 10 <= a21)) || ((a12 + 49 <= 0 && a15 <= 5) && a21 <= 7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.9s, OverallIterations: 15, TraceHistogramMax: 9, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 652 SDtfs, 10950 SDslu, 691 SDs, 0 SdLazy, 17682 SolverSat, 2953 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14019 GetRequests, 13847 SyntacticMatches, 14 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7778occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 2421 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 321 PreInvPairs, 423 NumberOfFragments, 394 HoareAnnotationTreeSize, 321 FomulaSimplifications, 27055 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10066 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 8415 NumberOfCodeBlocks, 7087 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 13869 ConstructedInterpolants, 0 QuantifiedInterpolants, 33905721 SizeOfPredicates, 36 NumberOfNonLiveVariables, 10702 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 31129/32957 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...