/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:05:50,465 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 22:05:50,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:05:50,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:05:50,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:05:50,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:05:50,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:05:50,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:05:50,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:05:50,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:05:50,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:05:50,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:05:50,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:05:50,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:05:50,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:05:50,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:05:50,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:05:50,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:05:50,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:05:50,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:05:50,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:05:50,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:05:50,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:05:50,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:05:50,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:05:50,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:05:50,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 22:05:50,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:05:50,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:05:50,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:05:50,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:05:50,536 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:05:50,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:05:50,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:05:50,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:05:50,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:05:50,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:05:50,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:05:50,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:05:50,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:05:50,538 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:05:50,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:05:50,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:05:50,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:05:50,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:05:50,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:05:50,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:05:50,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:05:50,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:05:50,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:05:50,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:05:50,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:05:50,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:05:50,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:50,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:05:50,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:05:50,542 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 -> 4 [2020-07-20 22:05:50,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:05:50,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:05:50,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:05:50,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:05:50,836 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:05:50,837 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-20 22:05:50,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f074702/628fecaef483492aa3b1aa430325fdc5/FLAG00f23891e [2020-07-20 22:05:51,514 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:05:51,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-20 22:05:51,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f074702/628fecaef483492aa3b1aa430325fdc5/FLAG00f23891e [2020-07-20 22:05:51,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f074702/628fecaef483492aa3b1aa430325fdc5 [2020-07-20 22:05:51,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:05:51,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:05:51,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:05:51,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:05:51,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:05:51,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:05:51" (1/1) ... [2020-07-20 22:05:51,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e755a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:51, skipping insertion in model container [2020-07-20 22:05:51,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:05:51" (1/1) ... [2020-07-20 22:05:51,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:05:51,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:05:52,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:05:52,386 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:05:52,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:05:52,523 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:05:52,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52 WrapperNode [2020-07-20 22:05:52,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:05:52,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:05:52,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:05:52,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:05:52,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... [2020-07-20 22:05:52,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:05:52,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:05:52,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:05:52,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:05:52,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:05:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:05:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:05:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:05:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:05:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:05:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:05:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:05:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:05:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:05:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:05:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:05:53,970 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:05:53,970 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:05:53,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:05:53 BoogieIcfgContainer [2020-07-20 22:05:53,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:05:53,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:05:53,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:05:53,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:05:53,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:05:51" (1/3) ... [2020-07-20 22:05:53,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417799c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:05:53, skipping insertion in model container [2020-07-20 22:05:53,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:05:52" (2/3) ... [2020-07-20 22:05:53,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417799c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:05:53, skipping insertion in model container [2020-07-20 22:05:53,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:05:53" (3/3) ... [2020-07-20 22:05:53,985 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2020-07-20 22:05:53,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:05:54,004 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:05:54,019 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:05:54,048 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:05:54,048 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:05:54,048 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:05:54,049 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:05:54,049 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:05:54,049 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:05:54,050 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:05:54,050 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:05:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 22:05:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 22:05:54,092 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:54,093 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] [2020-07-20 22:05:54,094 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:54,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:54,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1666327721, now seen corresponding path program 1 times [2020-07-20 22:05:54,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:54,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770355192] [2020-07-20 22:05:54,114 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:54,302 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:54,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:54,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:05:54,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:54,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:54,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770355192] [2020-07-20 22:05:54,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:54,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:54,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834757894] [2020-07-20 22:05:54,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:54,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:54,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:54,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:54,449 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 22:05:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:55,405 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 22:05:55,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:55,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-20 22:05:55,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:55,434 INFO L225 Difference]: With dead ends: 619 [2020-07-20 22:05:55,434 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 22:05:55,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:55,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 22:05:55,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 22:05:55,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 22:05:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 22:05:55,519 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 111 [2020-07-20 22:05:55,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:55,521 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 22:05:55,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 22:05:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 22:05:55,525 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:55,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:55,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:55,741 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:55,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1096762264, now seen corresponding path program 1 times [2020-07-20 22:05:55,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:55,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601817295] [2020-07-20 22:05:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:55,855 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:55,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:55,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 22:05:55,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 22:05:55,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 22:05:56,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601817295] [2020-07-20 22:05:56,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 22:05:56,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 22:05:56,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779392177] [2020-07-20 22:05:56,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 22:05:56,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 22:05:56,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:05:56,025 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 22:05:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:56,729 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 22:05:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 22:05:56,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-07-20 22:05:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:56,738 INFO L225 Difference]: With dead ends: 941 [2020-07-20 22:05:56,738 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 22:05:56,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:05:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 22:05:56,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 22:05:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 22:05:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 22:05:56,781 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 120 [2020-07-20 22:05:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:56,782 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 22:05:56,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 22:05:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 22:05:56,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 22:05:56,786 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:56,787 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:57,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:57,002 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:57,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:57,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1858974237, now seen corresponding path program 1 times [2020-07-20 22:05:57,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:57,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579293683] [2020-07-20 22:05:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:57,105 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:57,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:57,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:57,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 22:05:57,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:57,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579293683] [2020-07-20 22:05:57,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:57,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:57,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300910255] [2020-07-20 22:05:57,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:57,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:57,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:57,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:57,156 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 22:05:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:57,808 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 22:05:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:57,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 22:05:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:57,826 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 22:05:57,826 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 22:05:57,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 22:05:57,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 22:05:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 22:05:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 22:05:57,885 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 128 [2020-07-20 22:05:57,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:57,886 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 22:05:57,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 22:05:57,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-20 22:05:57,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:57,892 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:58,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:58,106 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:58,107 INFO L82 PathProgramCache]: Analyzing trace with hash 459938663, now seen corresponding path program 1 times [2020-07-20 22:05:58,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:58,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317819168] [2020-07-20 22:05:58,109 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:58,233 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:58,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:58,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:05:58,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:58,293 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 22:05:58,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 22:05:58,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317819168] [2020-07-20 22:05:58,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:58,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 22:05:58,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094984317] [2020-07-20 22:05:58,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:05:58,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:58,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:05:58,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:05:58,391 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-20 22:05:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:59,208 INFO L93 Difference]: Finished difference Result 2773 states and 3861 transitions. [2020-07-20 22:05:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:05:59,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-07-20 22:05:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:59,230 INFO L225 Difference]: With dead ends: 2773 [2020-07-20 22:05:59,231 INFO L226 Difference]: Without dead ends: 1860 [2020-07-20 22:05:59,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:05:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-07-20 22:05:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1828. [2020-07-20 22:05:59,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-07-20 22:05:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2448 transitions. [2020-07-20 22:05:59,331 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2448 transitions. Word has length 134 [2020-07-20 22:05:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:59,333 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 2448 transitions. [2020-07-20 22:05:59,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:05:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2448 transitions. [2020-07-20 22:05:59,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 22:05:59,343 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:59,344 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:59,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:59,559 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:59,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:59,560 INFO L82 PathProgramCache]: Analyzing trace with hash 349804708, now seen corresponding path program 2 times [2020-07-20 22:05:59,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:59,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034591860] [2020-07-20 22:05:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:59,659 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:59,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:59,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:59,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 22:05:59,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 22:05:59,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034591860] [2020-07-20 22:05:59,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:59,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:05:59,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762741918] [2020-07-20 22:05:59,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:05:59,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:59,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:05:59,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:59,773 INFO L87 Difference]: Start difference. First operand 1828 states and 2448 transitions. Second operand 7 states. [2020-07-20 22:06:01,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:01,402 INFO L93 Difference]: Finished difference Result 4385 states and 6475 transitions. [2020-07-20 22:06:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 22:06:01,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-20 22:06:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:01,424 INFO L225 Difference]: With dead ends: 4385 [2020-07-20 22:06:01,424 INFO L226 Difference]: Without dead ends: 2563 [2020-07-20 22:06:01,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-20 22:06:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-07-20 22:06:01,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2468. [2020-07-20 22:06:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2468 states. [2020-07-20 22:06:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3122 transitions. [2020-07-20 22:06:01,526 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3122 transitions. Word has length 137 [2020-07-20 22:06:01,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:01,527 INFO L479 AbstractCegarLoop]: Abstraction has 2468 states and 3122 transitions. [2020-07-20 22:06:01,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:06:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3122 transitions. [2020-07-20 22:06:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 22:06:01,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:01,548 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:06:01,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:01,750 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:01,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1845831279, now seen corresponding path program 1 times [2020-07-20 22:06:01,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:01,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655339969] [2020-07-20 22:06:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:01,849 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:01,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:01,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:06:01,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 22:06:01,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:06:01,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655339969] [2020-07-20 22:06:01,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:06:01,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:06:01,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468441110] [2020-07-20 22:06:01,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:06:01,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:01,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:06:01,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:06:01,903 INFO L87 Difference]: Start difference. First operand 2468 states and 3122 transitions. Second operand 3 states. [2020-07-20 22:06:02,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:02,538 INFO L93 Difference]: Finished difference Result 5522 states and 7106 transitions. [2020-07-20 22:06:02,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:06:02,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-20 22:06:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:02,556 INFO L225 Difference]: With dead ends: 5522 [2020-07-20 22:06:02,557 INFO L226 Difference]: Without dead ends: 3060 [2020-07-20 22:06:02,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:06:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-07-20 22:06:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3054. [2020-07-20 22:06:02,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2020-07-20 22:06:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3801 transitions. [2020-07-20 22:06:02,659 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3801 transitions. Word has length 138 [2020-07-20 22:06:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:02,660 INFO L479 AbstractCegarLoop]: Abstraction has 3054 states and 3801 transitions. [2020-07-20 22:06:02,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:06:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3801 transitions. [2020-07-20 22:06:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 22:06:02,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:02,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:06:02,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:02,884 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:02,884 INFO L82 PathProgramCache]: Analyzing trace with hash -161267733, now seen corresponding path program 1 times [2020-07-20 22:06:02,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:02,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34414274] [2020-07-20 22:06:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:02,976 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:02,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:02,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:06:02,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:03,018 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:06:03,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:06:03,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34414274] [2020-07-20 22:06:03,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:06:03,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:06:03,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601647882] [2020-07-20 22:06:03,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:06:03,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:03,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:06:03,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:06:03,020 INFO L87 Difference]: Start difference. First operand 3054 states and 3801 transitions. Second operand 5 states. [2020-07-20 22:06:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:03,955 INFO L93 Difference]: Finished difference Result 8247 states and 10820 transitions. [2020-07-20 22:06:03,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:06:03,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-07-20 22:06:03,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:03,986 INFO L225 Difference]: With dead ends: 8247 [2020-07-20 22:06:03,986 INFO L226 Difference]: Without dead ends: 5199 [2020-07-20 22:06:03,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:06:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2020-07-20 22:06:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5127. [2020-07-20 22:06:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5127 states. [2020-07-20 22:06:04,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6247 transitions. [2020-07-20 22:06:04,153 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6247 transitions. Word has length 142 [2020-07-20 22:06:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:04,154 INFO L479 AbstractCegarLoop]: Abstraction has 5127 states and 6247 transitions. [2020-07-20 22:06:04,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:06:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6247 transitions. [2020-07-20 22:06:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-20 22:06:04,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:04,170 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 22:06:04,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:04,384 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:04,385 INFO L82 PathProgramCache]: Analyzing trace with hash 455788955, now seen corresponding path program 1 times [2020-07-20 22:06:04,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:04,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484635508] [2020-07-20 22:06:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:04,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:04,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:04,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:06:04,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 22:06:04,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:06:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 22:06:04,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484635508] [2020-07-20 22:06:04,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:06:04,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:06:04,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230696628] [2020-07-20 22:06:04,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:06:04,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:04,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:06:04,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:06:04,748 INFO L87 Difference]: Start difference. First operand 5127 states and 6247 transitions. Second operand 6 states. [2020-07-20 22:06:05,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:05,281 INFO L93 Difference]: Finished difference Result 9839 states and 12352 transitions. [2020-07-20 22:06:05,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:06:05,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2020-07-20 22:06:05,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:05,307 INFO L225 Difference]: With dead ends: 9839 [2020-07-20 22:06:05,310 INFO L226 Difference]: Without dead ends: 4718 [2020-07-20 22:06:05,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:06:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2020-07-20 22:06:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4652. [2020-07-20 22:06:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-07-20 22:06:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 5508 transitions. [2020-07-20 22:06:05,458 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 5508 transitions. Word has length 211 [2020-07-20 22:06:05,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:05,458 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 5508 transitions. [2020-07-20 22:06:05,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:06:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 5508 transitions. [2020-07-20 22:06:05,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-20 22:06:05,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:05,474 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:06:05,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:05,688 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:05,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:05,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1716455552, now seen corresponding path program 1 times [2020-07-20 22:06:05,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:05,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213292118] [2020-07-20 22:06:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:05,826 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:05,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:05,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:06:05,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-20 22:06:05,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:06:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 133 proven. 54 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 22:06:06,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213292118] [2020-07-20 22:06:06,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:06:06,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:06:06,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983958101] [2020-07-20 22:06:06,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:06:06,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:06,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:06:06,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:06:06,093 INFO L87 Difference]: Start difference. First operand 4652 states and 5508 transitions. Second operand 6 states. [2020-07-20 22:06:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:06,892 INFO L93 Difference]: Finished difference Result 8881 states and 10565 transitions. [2020-07-20 22:06:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:06:06,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-07-20 22:06:06,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:06,910 INFO L225 Difference]: With dead ends: 8881 [2020-07-20 22:06:06,911 INFO L226 Difference]: Without dead ends: 4379 [2020-07-20 22:06:06,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:06:06,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2020-07-20 22:06:07,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4375. [2020-07-20 22:06:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2020-07-20 22:06:07,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5103 transitions. [2020-07-20 22:06:07,027 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5103 transitions. Word has length 241 [2020-07-20 22:06:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:07,028 INFO L479 AbstractCegarLoop]: Abstraction has 4375 states and 5103 transitions. [2020-07-20 22:06:07,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:06:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5103 transitions. [2020-07-20 22:06:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-07-20 22:06:07,042 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:07,042 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:06:07,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:07,258 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:07,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1657714952, now seen corresponding path program 1 times [2020-07-20 22:06:07,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:07,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138078009] [2020-07-20 22:06:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:07,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:07,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:07,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:06:07,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 22:06:07,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:06:07,622 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 22:06:07,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138078009] [2020-07-20 22:06:07,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:06:07,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:06:07,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858723328] [2020-07-20 22:06:07,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:06:07,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:07,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:06:07,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:06:07,624 INFO L87 Difference]: Start difference. First operand 4375 states and 5103 transitions. Second operand 7 states. [2020-07-20 22:06:08,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:08,897 INFO L93 Difference]: Finished difference Result 10612 states and 12330 transitions. [2020-07-20 22:06:08,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:06:08,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-07-20 22:06:08,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:08,930 INFO L225 Difference]: With dead ends: 10612 [2020-07-20 22:06:08,931 INFO L226 Difference]: Without dead ends: 6387 [2020-07-20 22:06:08,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:06:08,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2020-07-20 22:06:09,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6097. [2020-07-20 22:06:09,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6097 states. [2020-07-20 22:06:09,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6097 states to 6097 states and 6840 transitions. [2020-07-20 22:06:09,183 INFO L78 Accepts]: Start accepts. Automaton has 6097 states and 6840 transitions. Word has length 245 [2020-07-20 22:06:09,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:09,184 INFO L479 AbstractCegarLoop]: Abstraction has 6097 states and 6840 transitions. [2020-07-20 22:06:09,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:06:09,184 INFO L276 IsEmpty]: Start isEmpty. Operand 6097 states and 6840 transitions. [2020-07-20 22:06:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-20 22:06:09,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:09,202 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:06:09,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:09,418 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:09,419 INFO L82 PathProgramCache]: Analyzing trace with hash -186224720, now seen corresponding path program 1 times [2020-07-20 22:06:09,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:09,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625382782] [2020-07-20 22:06:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:09,561 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:09,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:09,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:06:09,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 22:06:09,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:06:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 186 proven. 36 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-20 22:06:09,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625382782] [2020-07-20 22:06:09,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:06:09,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:06:09,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883592478] [2020-07-20 22:06:09,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:06:09,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:09,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:06:09,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:06:09,730 INFO L87 Difference]: Start difference. First operand 6097 states and 6840 transitions. Second operand 7 states. [2020-07-20 22:06:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:10,966 INFO L93 Difference]: Finished difference Result 11181 states and 12535 transitions. [2020-07-20 22:06:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:06:10,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-07-20 22:06:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:10,981 INFO L225 Difference]: With dead ends: 11181 [2020-07-20 22:06:10,982 INFO L226 Difference]: Without dead ends: 5503 [2020-07-20 22:06:10,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 499 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:06:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-07-20 22:06:11,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5497. [2020-07-20 22:06:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5497 states. [2020-07-20 22:06:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6061 transitions. [2020-07-20 22:06:11,109 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6061 transitions. Word has length 252 [2020-07-20 22:06:11,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:11,110 INFO L479 AbstractCegarLoop]: Abstraction has 5497 states and 6061 transitions. [2020-07-20 22:06:11,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:06:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6061 transitions. [2020-07-20 22:06:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-20 22:06:11,130 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:06:11,130 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:06:11,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:11,345 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:06:11,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:06:11,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1332464188, now seen corresponding path program 1 times [2020-07-20 22:06:11,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:06:11,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84444234] [2020-07-20 22:06:11,346 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:11,500 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:06:11,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:06:11,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:06:11,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:06:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-20 22:06:11,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:06:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-20 22:06:11,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84444234] [2020-07-20 22:06:11,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:06:11,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:06:11,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19198340] [2020-07-20 22:06:11,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:06:11,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:06:11,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:06:11,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:06:11,673 INFO L87 Difference]: Start difference. First operand 5497 states and 6061 transitions. Second operand 7 states. [2020-07-20 22:06:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:06:12,855 INFO L93 Difference]: Finished difference Result 10238 states and 11289 transitions. [2020-07-20 22:06:12,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:06:12,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2020-07-20 22:06:12,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:06:12,860 INFO L225 Difference]: With dead ends: 10238 [2020-07-20 22:06:12,860 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:06:12,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:06:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:06:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:06:12,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:06:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:06:12,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 277 [2020-07-20 22:06:12,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:06:12,878 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:06:12,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:06:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:06:12,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:06:13,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:13,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:06:13,714 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-20 22:06:13,895 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-20 22:06:15,676 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 157 DAG size of output: 82 [2020-07-20 22:06:16,441 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-20 22:06:17,181 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-20 22:06:17,185 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:06:17,186 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)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 22:06:17,186 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:06:17,186 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,186 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,186 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,186 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,186 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 22:06:17,187 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,188 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 22:06:17,189 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,190 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 487) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 22:06:17,191 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,192 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 22:06:17,193 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 22:06:17,194 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,195 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 22:06:17,196 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:06:17,197 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:06:17,198 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 22:06:17,199 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 22:06:17,200 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,201 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 22:06:17,202 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,203 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 22:06:17,204 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 22:06:17,205 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,206 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,206 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,206 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse25 (<= ~a11~0 0))) (let ((.cse18 (= 1 ~a25~0)) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse22 (or .cse25 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a25~0 |old(~a25~0)|)) (.cse26 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse17 (<= |old(~a28~0)| ~a28~0)) (.cse27 (= ~a25~0 |old(~a25~0)|))) (let ((.cse9 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse27)) (.cse1 (and .cse21 .cse26 .cse22 .cse23 .cse16 .cse17)) (.cse19 (and .cse25 .cse26 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse24 (<= ~a28~0 9)) (.cse12 (not (= 1 |old(~a25~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a28~0)| 10))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse15 (<= ~a28~0 10)) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse7 (not (<= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a25~0)| 0))) (.cse8 (not (<= |old(~a19~0)| 0))) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse20 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse4 .cse8 .cse9 .cse10) (or .cse11 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse7 .cse12 .cse10 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse0 .cse1 .cse11 .cse5) (or .cse0 .cse7 .cse12 .cse19 .cse10 .cse20) (or .cse2 .cse3 .cse4 .cse8 .cse5 (and .cse21 .cse22 .cse15 .cse23 .cse16 .cse17)) (or .cse2 .cse3 .cse7 .cse12 .cse8 .cse19 .cse10 .cse20) (or .cse0 .cse3 .cse6 .cse4 .cse24 .cse10) (or .cse0 .cse11 .cse4 (and .cse25 .cse26 .cse13 .cse16 .cse17 .cse27) .cse10 .cse20) (or .cse0 .cse11 .cse7 .cse12 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse18) .cse10) (or .cse3 .cse6 .cse8 .cse5 (and .cse21 .cse22 .cse24 .cse23 .cse16 .cse17)) (or .cse0 .cse3 .cse6 .cse24 .cse7 .cse12 .cse10) (or .cse25 .cse11 .cse7 .cse8 .cse10 .cse20) (or .cse0 .cse2 .cse3 .cse7 .cse4 (and .cse22 .cse13 .cse14 .cse15 .cse16 .cse17 .cse27) .cse10) (or .cse25 .cse6 .cse7 .cse4 .cse8 .cse10 .cse20))))) [2020-07-20 22:06:17,206 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,206 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 22:06:17,207 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,208 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 22:06:17,209 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:06:17,210 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:06:17,211 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 22:06:17,212 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:06:17,213 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 22:06:17,214 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 22:06:17,214 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:06:17,214 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 22:06:17,214 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:06:17,214 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:06:17,215 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 (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 22:06:17,215 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-20 22:06:17,215 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:06:17,215 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:06:17,216 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-20 22:06:17,216 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 22:06:17,216 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 22:06:17,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:06:17 BoogieIcfgContainer [2020-07-20 22:06:17,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:06:17,242 INFO L168 Benchmark]: Toolchain (without parser) took 25449.15 ms. Allocated memory was 137.9 MB in the beginning and 679.5 MB in the end (delta: 541.6 MB). Free memory was 100.5 MB in the beginning and 273.2 MB in the end (delta: -172.7 MB). Peak memory consumption was 494.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:06:17,243 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 22:06:17,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.13 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.1 MB in the beginning and 170.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-20 22:06:17,244 INFO L168 Benchmark]: Boogie Preprocessor took 103.16 ms. Allocated memory is still 203.9 MB. Free memory was 170.7 MB in the beginning and 165.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:06:17,245 INFO L168 Benchmark]: RCFGBuilder took 1348.76 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 165.7 MB in the beginning and 180.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:06:17,246 INFO L168 Benchmark]: TraceAbstraction took 23262.51 ms. Allocated memory was 235.9 MB in the beginning and 679.5 MB in the end (delta: 443.5 MB). Free memory was 180.1 MB in the beginning and 273.2 MB in the end (delta: -93.1 MB). Peak memory consumption was 476.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:06:17,249 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.13 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.1 MB in the beginning and 170.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.16 ms. Allocated memory is still 203.9 MB. Free memory was 170.7 MB in the beginning and 165.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1348.76 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 165.7 MB in the beginning and 180.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23262.51 ms. Allocated memory was 235.9 MB in the beginning and 679.5 MB in the end (delta: 443.5 MB). Free memory was 180.1 MB in the beginning and 273.2 MB in the end (delta: -93.1 MB). Peak memory consumption was 476.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 487]: 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 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || ((((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && a19 <= 0) && 9 <= a28)) || !(\old(a11) <= 0)) || ((((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && 9 <= a28) && a19 <= 0) && 1 == a25)) || !(\old(a25) <= 0)) || ((((1 == a19 && a17 <= 8) && a17 <= 7) && 7 < \old(a17)) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.0s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 977 SDtfs, 5524 SDslu, 662 SDs, 0 SdLazy, 8262 SolverSat, 1178 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3774 GetRequests, 3702 SyntacticMatches, 14 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6097occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 575 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 266 PreInvPairs, 342 NumberOfFragments, 1130 HoareAnnotationTreeSize, 266 FomulaSimplifications, 8585 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4842 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2136 NumberOfCodeBlocks, 2136 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 1402655 SizeOfPredicates, 15 NumberOfNonLiveVariables, 5517 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 2597/2863 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...