/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:09:26,297 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 20:09:26,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:09:26,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:09:26,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:09:26,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:09:26,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:09:26,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:09:26,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:09:26,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:09:26,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:09:26,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:09:26,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:09:26,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:09:26,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:09:26,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:09:26,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:09:26,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:09:26,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:09:26,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:09:26,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:09:26,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:09:26,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:09:26,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:09:26,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:09:26,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:09:26,349 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 20:09:26,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:09:26,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:09:26,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:09:26,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:09:26,366 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:09:26,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:09:26,366 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:09:26,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:09:26,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:09:26,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:09:26,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:09:26,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:09:26,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:09:26,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:09:26,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:09:26,368 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:09:26,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:09:26,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:09:26,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:09:26,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:09:26,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:09:26,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:26,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:09:26,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:09:26,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:09:26,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:09:26,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:26,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:09:26,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:09:26,371 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 -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:09:26,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:09:26,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:09:26,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:09:26,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:09:26,688 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:09:26,688 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 20:09:26,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fadb2accb/e50bc8e9fe7b46c7a3c1dcb9900b5f9b/FLAGb1578d22d [2020-07-21 20:09:27,322 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:09:27,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 20:09:27,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fadb2accb/e50bc8e9fe7b46c7a3c1dcb9900b5f9b/FLAGb1578d22d [2020-07-21 20:09:27,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fadb2accb/e50bc8e9fe7b46c7a3c1dcb9900b5f9b [2020-07-21 20:09:27,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:09:27,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:09:27,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:27,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:09:27,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:09:27,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:27" (1/1) ... [2020-07-21 20:09:27,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f6e107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:27, skipping insertion in model container [2020-07-21 20:09:27,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:27" (1/1) ... [2020-07-21 20:09:27,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:09:27,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:09:28,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:28,210 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:09:28,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:28,331 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:09:28,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28 WrapperNode [2020-07-21 20:09:28,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:28,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:09:28,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:09:28,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:09:28,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (1/1) ... [2020-07-21 20:09:28,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:09:28,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:09:28,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:09:28,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:09:28,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (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 20:09:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:09:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:09:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:09:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:09:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:09:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:09:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:09:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:09:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:09:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:09:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:09:29,784 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:09:29,784 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:09:29,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:29 BoogieIcfgContainer [2020-07-21 20:09:29,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:09:29,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:09:29,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:09:29,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:09:29,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:09:27" (1/3) ... [2020-07-21 20:09:29,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115bd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:29, skipping insertion in model container [2020-07-21 20:09:29,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:28" (2/3) ... [2020-07-21 20:09:29,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115bd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:29, skipping insertion in model container [2020-07-21 20:09:29,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:29" (3/3) ... [2020-07-21 20:09:29,809 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-21 20:09:29,821 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:09:29,834 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:09:29,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:09:29,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:09:29,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:09:29,883 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:09:29,883 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:09:29,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:09:29,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:09:29,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:09:29,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:09:29,910 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:09:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 20:09:29,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:29,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:29,928 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:29,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:29,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-21 20:09:29,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:29,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013737595] [2020-07-21 20:09:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:30,192 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:30,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:30,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:30,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:30,375 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 20:09:30,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:30,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013737595] [2020-07-21 20:09:30,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:30,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:30,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061226380] [2020-07-21 20:09:30,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:30,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:30,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:30,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:30,411 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:09:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:31,380 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 20:09:31,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:31,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 20:09:31,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:31,401 INFO L225 Difference]: With dead ends: 615 [2020-07-21 20:09:31,402 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 20:09:31,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 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 20:09:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 20:09:31,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 20:09:31,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 20:09:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 20:09:31,503 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-21 20:09:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:31,508 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 20:09:31,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 20:09:31,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 20:09:31,523 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:31,524 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:31,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:31,725 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:31,726 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-21 20:09:31,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:31,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100601977] [2020-07-21 20:09:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:31,844 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:31,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:31,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:31,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:31,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:31,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100601977] [2020-07-21 20:09:31,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:31,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:31,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497607971] [2020-07-21 20:09:31,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:31,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:31,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:31,931 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 20:09:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:32,577 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 20:09:32,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:32,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-07-21 20:09:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:32,584 INFO L225 Difference]: With dead ends: 919 [2020-07-21 20:09:32,584 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 20:09:32,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 20:09:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 20:09:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 20:09:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 20:09:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 20:09:32,640 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 157 [2020-07-21 20:09:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:32,641 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 20:09:32,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 20:09:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 20:09:32,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:32,644 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:32,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:32,859 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:32,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:32,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-21 20:09:32,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:32,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484493980] [2020-07-21 20:09:32,863 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:32,998 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:32,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:33,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:33,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:33,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:33,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484493980] [2020-07-21 20:09:33,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:33,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:33,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305832349] [2020-07-21 20:09:33,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:33,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:33,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:33,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:33,081 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 20:09:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:33,708 INFO L93 Difference]: Finished difference Result 1359 states and 1917 transitions. [2020-07-21 20:09:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:33,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-21 20:09:33,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:33,724 INFO L225 Difference]: With dead ends: 1359 [2020-07-21 20:09:33,724 INFO L226 Difference]: Without dead ends: 903 [2020-07-21 20:09:33,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 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 20:09:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-07-21 20:09:33,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 902. [2020-07-21 20:09:33,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-07-21 20:09:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1159 transitions. [2020-07-21 20:09:33,784 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1159 transitions. Word has length 164 [2020-07-21 20:09:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:33,785 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1159 transitions. [2020-07-21 20:09:33,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:33,785 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1159 transitions. [2020-07-21 20:09:33,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 20:09:33,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:33,813 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:34,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:34,018 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:34,019 INFO L82 PathProgramCache]: Analyzing trace with hash -315093218, now seen corresponding path program 1 times [2020-07-21 20:09:34,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:34,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207408210] [2020-07-21 20:09:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:34,130 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:34,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:34,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:34,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:34,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:34,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207408210] [2020-07-21 20:09:34,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:34,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:34,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015459382] [2020-07-21 20:09:34,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:34,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:34,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:34,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:34,191 INFO L87 Difference]: Start difference. First operand 902 states and 1159 transitions. Second operand 3 states. [2020-07-21 20:09:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:34,839 INFO L93 Difference]: Finished difference Result 2236 states and 2978 transitions. [2020-07-21 20:09:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:34,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-07-21 20:09:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:34,847 INFO L225 Difference]: With dead ends: 2236 [2020-07-21 20:09:34,847 INFO L226 Difference]: Without dead ends: 1340 [2020-07-21 20:09:34,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 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 20:09:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-07-21 20:09:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1194. [2020-07-21 20:09:34,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-21 20:09:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1490 transitions. [2020-07-21 20:09:34,916 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1490 transitions. Word has length 168 [2020-07-21 20:09:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:34,916 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1490 transitions. [2020-07-21 20:09:34,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:34,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1490 transitions. [2020-07-21 20:09:34,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 20:09:34,923 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:34,923 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:35,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:35,137 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:35,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-21 20:09:35,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:35,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369909872] [2020-07-21 20:09:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:35,263 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:35,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:35,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:35,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:35,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:35,420 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:35,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369909872] [2020-07-21 20:09:35,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:35,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:09:35,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577465906] [2020-07-21 20:09:35,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:09:35,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:35,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:09:35,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:09:35,424 INFO L87 Difference]: Start difference. First operand 1194 states and 1490 transitions. Second operand 7 states. [2020-07-21 20:09:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:37,069 INFO L93 Difference]: Finished difference Result 3570 states and 4728 transitions. [2020-07-21 20:09:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:37,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-21 20:09:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:37,082 INFO L225 Difference]: With dead ends: 3570 [2020-07-21 20:09:37,082 INFO L226 Difference]: Without dead ends: 2382 [2020-07-21 20:09:37,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2020-07-21 20:09:37,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2236. [2020-07-21 20:09:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-07-21 20:09:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2800 transitions. [2020-07-21 20:09:37,148 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2800 transitions. Word has length 181 [2020-07-21 20:09:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:37,149 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2800 transitions. [2020-07-21 20:09:37,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:09:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2800 transitions. [2020-07-21 20:09:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 20:09:37,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:37,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:37,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:37,372 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:37,373 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-21 20:09:37,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:37,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496839337] [2020-07-21 20:09:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:37,525 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:37,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:37,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:37,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:37,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:37,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496839337] [2020-07-21 20:09:37,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:37,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:09:37,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463951167] [2020-07-21 20:09:37,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:09:37,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:37,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:09:37,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:09:37,690 INFO L87 Difference]: Start difference. First operand 2236 states and 2800 transitions. Second operand 7 states. [2020-07-21 20:09:38,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:38,770 INFO L93 Difference]: Finished difference Result 5225 states and 6791 transitions. [2020-07-21 20:09:38,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:38,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-21 20:09:38,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:38,818 INFO L225 Difference]: With dead ends: 5225 [2020-07-21 20:09:38,818 INFO L226 Difference]: Without dead ends: 2999 [2020-07-21 20:09:38,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:38,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2020-07-21 20:09:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2270. [2020-07-21 20:09:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2020-07-21 20:09:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2867 transitions. [2020-07-21 20:09:38,925 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2867 transitions. Word has length 193 [2020-07-21 20:09:38,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:38,926 INFO L479 AbstractCegarLoop]: Abstraction has 2270 states and 2867 transitions. [2020-07-21 20:09:38,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:09:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2867 transitions. [2020-07-21 20:09:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 20:09:38,936 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:38,937 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:39,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:39,152 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:39,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-21 20:09:39,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:39,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700894727] [2020-07-21 20:09:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:39,268 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:39,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:39,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:39,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 20:09:39,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:39,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700894727] [2020-07-21 20:09:39,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:39,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:39,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103318918] [2020-07-21 20:09:39,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:39,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:39,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:39,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:39,319 INFO L87 Difference]: Start difference. First operand 2270 states and 2867 transitions. Second operand 3 states. [2020-07-21 20:09:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:39,901 INFO L93 Difference]: Finished difference Result 4100 states and 5144 transitions. [2020-07-21 20:09:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:39,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-21 20:09:39,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:39,917 INFO L225 Difference]: With dead ends: 4100 [2020-07-21 20:09:39,917 INFO L226 Difference]: Without dead ends: 2270 [2020-07-21 20:09:39,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 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 20:09:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2020-07-21 20:09:39,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2124. [2020-07-21 20:09:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2020-07-21 20:09:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2561 transitions. [2020-07-21 20:09:39,983 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2561 transitions. Word has length 201 [2020-07-21 20:09:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:39,984 INFO L479 AbstractCegarLoop]: Abstraction has 2124 states and 2561 transitions. [2020-07-21 20:09:39,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:39,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2561 transitions. [2020-07-21 20:09:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 20:09:39,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:39,992 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:40,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:40,206 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:40,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-21 20:09:40,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:40,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105482562] [2020-07-21 20:09:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:40,369 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:40,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:40,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:09:40,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:40,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:40,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105482562] [2020-07-21 20:09:40,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:40,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:40,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420967724] [2020-07-21 20:09:40,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:40,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:40,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:40,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:40,555 INFO L87 Difference]: Start difference. First operand 2124 states and 2561 transitions. Second operand 6 states. [2020-07-21 20:09:41,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:41,306 INFO L93 Difference]: Finished difference Result 4272 states and 5278 transitions. [2020-07-21 20:09:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:41,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-21 20:09:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:41,319 INFO L225 Difference]: With dead ends: 4272 [2020-07-21 20:09:41,320 INFO L226 Difference]: Without dead ends: 2158 [2020-07-21 20:09:41,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2020-07-21 20:09:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2128. [2020-07-21 20:09:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-07-21 20:09:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2455 transitions. [2020-07-21 20:09:41,443 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2455 transitions. Word has length 221 [2020-07-21 20:09:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:41,446 INFO L479 AbstractCegarLoop]: Abstraction has 2128 states and 2455 transitions. [2020-07-21 20:09:41,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2455 transitions. [2020-07-21 20:09:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 20:09:41,455 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:41,456 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:09:41,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:41,670 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:41,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1374694561, now seen corresponding path program 1 times [2020-07-21 20:09:41,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:41,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450350061] [2020-07-21 20:09:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:41,795 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:41,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:41,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:41,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 20:09:41,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:41,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450350061] [2020-07-21 20:09:41,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:41,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:41,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019842669] [2020-07-21 20:09:41,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:41,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:41,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:41,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:41,871 INFO L87 Difference]: Start difference. First operand 2128 states and 2455 transitions. Second operand 5 states. [2020-07-21 20:09:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:42,359 INFO L93 Difference]: Finished difference Result 4117 states and 4884 transitions. [2020-07-21 20:09:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:09:42,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-07-21 20:09:42,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:42,369 INFO L225 Difference]: With dead ends: 4117 [2020-07-21 20:09:42,369 INFO L226 Difference]: Without dead ends: 1999 [2020-07-21 20:09:42,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-21 20:09:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1961. [2020-07-21 20:09:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-07-21 20:09:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2198 transitions. [2020-07-21 20:09:42,426 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2198 transitions. Word has length 235 [2020-07-21 20:09:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:42,427 INFO L479 AbstractCegarLoop]: Abstraction has 1961 states and 2198 transitions. [2020-07-21 20:09:42,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2198 transitions. [2020-07-21 20:09:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-07-21 20:09:42,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:42,435 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:09:42,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:42,651 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:42,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:42,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1537639004, now seen corresponding path program 1 times [2020-07-21 20:09:42,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:42,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068473946] [2020-07-21 20:09:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:42,800 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:42,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:42,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:42,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 20:09:42,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 101 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 20:09:42,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068473946] [2020-07-21 20:09:42,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:42,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:42,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573438953] [2020-07-21 20:09:42,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:42,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:42,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:42,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:42,991 INFO L87 Difference]: Start difference. First operand 1961 states and 2198 transitions. Second operand 6 states. [2020-07-21 20:09:43,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:43,776 INFO L93 Difference]: Finished difference Result 3484 states and 3879 transitions. [2020-07-21 20:09:43,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:43,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2020-07-21 20:09:43,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:43,784 INFO L225 Difference]: With dead ends: 3484 [2020-07-21 20:09:43,785 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 20:09:43,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 482 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 20:09:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 20:09:43,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1803. [2020-07-21 20:09:43,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-21 20:09:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-21 20:09:43,831 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 243 [2020-07-21 20:09:43,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:43,831 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-21 20:09:43,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-21 20:09:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 20:09:43,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:43,841 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:09:44,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:44,055 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:44,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-21 20:09:44,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:44,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379042976] [2020-07-21 20:09:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:44,182 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:44,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:44,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:44,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:44,289 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:09:44,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:09:44,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379042976] [2020-07-21 20:09:44,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:44,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:44,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285731152] [2020-07-21 20:09:44,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:44,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:44,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:44,396 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-21 20:09:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:45,284 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-21 20:09:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:09:45,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-21 20:09:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:45,292 INFO L225 Difference]: With dead ends: 4188 [2020-07-21 20:09:45,293 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 20:09:45,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 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 20:09:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 20:09:45,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-21 20:09:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-21 20:09:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-21 20:09:45,329 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-21 20:09:45,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:45,329 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-21 20:09:45,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-21 20:09:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 20:09:45,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:45,336 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:09:45,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:45,550 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:45,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:45,550 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-21 20:09:45,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:45,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953909777] [2020-07-21 20:09:45,551 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 20:09:45,692 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:45,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:45,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:45,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 20:09:45,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 20:09:45,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953909777] [2020-07-21 20:09:45,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:45,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:45,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243429541] [2020-07-21 20:09:45,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:45,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:45,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:45,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:45,895 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-21 20:09:46,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:46,702 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-21 20:09:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:46,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-21 20:09:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:46,708 INFO L225 Difference]: With dead ends: 2737 [2020-07-21 20:09:46,708 INFO L226 Difference]: Without dead ends: 1380 [2020-07-21 20:09:46,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:46,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-21 20:09:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-21 20:09:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-21 20:09:46,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-21 20:09:46,738 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-21 20:09:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:46,738 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-21 20:09:46,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-21 20:09:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-21 20:09:46,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:46,746 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:46,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:46,959 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:46,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:46,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-21 20:09:46,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:46,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113800503] [2020-07-21 20:09:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 20:09:47,101 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:47,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:47,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:09:47,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-21 20:09:47,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:47,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113800503] [2020-07-21 20:09:47,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:47,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:47,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896939702] [2020-07-21 20:09:47,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:47,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:47,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:47,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:47,206 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-21 20:09:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:47,648 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-21 20:09:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:47,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-21 20:09:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:47,650 INFO L225 Difference]: With dead ends: 3302 [2020-07-21 20:09:47,650 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:09:47,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 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 20:09:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:09:47,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:09:47,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:09:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:09:47,657 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-21 20:09:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:47,657 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:09:47,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:09:47,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:09:47,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:47,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:09:49,410 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2020-07-21 20:09:49,768 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-21 20:09:50,148 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-21 20:09:50,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:09:50,152 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 20:09:50,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:09:50,152 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:09:50,153 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:09:50,154 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:09:50,155 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:09:50,155 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:09:50,155 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,155 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,155 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,155 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:09:50,156 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:09:50,157 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:09:50,158 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:09:50,158 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,158 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,158 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,158 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,158 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:09:50,159 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,160 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:09:50,161 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,162 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:09:50,163 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:09:50,164 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:09:50,165 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:09:50,166 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:09:50,167 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,168 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:09:50,169 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,170 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:09:50,171 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,172 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,173 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse17 (<= ~a28~0 9)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0))) (let ((.cse3 (and .cse8 .cse17 .cse11 .cse12)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse14 (not (<= |old(~a28~0)| 8))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse9 (= 1 ~a11~0)) (.cse13 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= |old(~a28~0)| 10))) (.cse16 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (<= 10 |old(~a28~0)|))) (.cse19 (<= 8 ~a17~0)) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse4 (not (= 1 |old(~a19~0)|))) (.cse15 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (not (<= |old(~a28~0)| 7))) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse3) (or .cse4 .cse6 .cse2 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13) (or .cse14 (and .cse15 .cse16 .cse11 .cse12) .cse1 .cse5) (or .cse4 (not (<= 9 |old(~a28~0)|)) .cse9 .cse0 .cse5 .cse13) (or .cse4 .cse14 (<= ~a28~0 8) .cse5) (or .cse6 .cse1 .cse7 .cse5 (and .cse8 .cse10 .cse11 .cse12)) (or .cse4 (not (<= 11 |old(~a28~0)|)) .cse5 (and .cse8 .cse15 .cse11 .cse12)) (or (and .cse9 .cse16 .cse17 .cse11 .cse12) .cse0 .cse1 .cse5 .cse13) (or .cse4 .cse9 .cse18 .cse5 .cse13) (or .cse4 .cse6 (and .cse16 .cse19 .cse10 .cse11 .cse12) .cse20 .cse7 .cse5) (or .cse18 .cse19 .cse20 .cse1 .cse5) (or .cse4 .cse15 .cse18 .cse5)))) [2020-07-21 20:09:50,173 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,173 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,173 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,173 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:09:50,173 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:09:50,173 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:09:50,174 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,175 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:09:50,176 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,177 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:09:50,178 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:09:50,179 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:09:50,180 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:09:50,180 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:09:50,180 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 20:09:50,180 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:09:50,180 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:09:50,180 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-21 20:09:50,180 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-21 20:09:50,181 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:09:50,181 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:09:50,181 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-21 20:09:50,181 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:09:50,181 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:09:50,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:09:50 BoogieIcfgContainer [2020-07-21 20:09:50,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:09:50,212 INFO L168 Benchmark]: Toolchain (without parser) took 22610.12 ms. Allocated memory was 136.8 MB in the beginning and 589.3 MB in the end (delta: 452.5 MB). Free memory was 98.8 MB in the beginning and 499.4 MB in the end (delta: -400.5 MB). Peak memory consumption was 427.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:50,213 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 136.8 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 20:09:50,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.99 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 98.4 MB in the beginning and 170.1 MB in the end (delta: -71.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:50,215 INFO L168 Benchmark]: Boogie Preprocessor took 106.83 ms. Allocated memory is still 203.4 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:50,215 INFO L168 Benchmark]: RCFGBuilder took 1354.91 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 165.1 MB in the beginning and 179.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:50,216 INFO L168 Benchmark]: TraceAbstraction took 20410.29 ms. Allocated memory was 233.8 MB in the beginning and 589.3 MB in the end (delta: 355.5 MB). Free memory was 179.7 MB in the beginning and 499.4 MB in the end (delta: -319.7 MB). Peak memory consumption was 411.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:50,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 136.8 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.99 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 98.4 MB in the beginning and 170.1 MB in the end (delta: -71.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.83 ms. Allocated memory is still 203.4 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1354.91 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 165.1 MB in the beginning and 179.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20410.29 ms. Allocated memory was 233.8 MB in the beginning and 589.3 MB in the end (delta: 355.5 MB). Free memory was 179.7 MB in the beginning and 499.4 MB in the end (delta: -319.7 MB). Peak memory consumption was 411.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || ((a28 <= 9 && a17 <= 7) && a19 <= 0)) || (((1 == a11 && a17 <= 8) && a28 <= 9) && a19 <= 0)) || ((1 == a19 && 1 == a11) && a17 <= 7)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || !(8 <= \old(a17))) || ((1 == a19 && a17 <= 8) && 11 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 9)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.9s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1322 SDtfs, 3496 SDslu, 600 SDs, 0 SdLazy, 7871 SolverSat, 1263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4123 GetRequests, 4063 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2270occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1843 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 139 PreInvPairs, 175 NumberOfFragments, 604 HoareAnnotationTreeSize, 139 FomulaSimplifications, 4120 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3062 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2739 NumberOfCodeBlocks, 2739 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 4087 ConstructedInterpolants, 0 QuantifiedInterpolants, 1709871 SizeOfPredicates, 17 NumberOfNonLiveVariables, 6024 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 1826/1904 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...