/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --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_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:07:44,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:07:44,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:07:44,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:07:44,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:07:44,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:07:44,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:07:44,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:07:44,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:07:44,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:07:44,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:07:44,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:07:44,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:07:44,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:07:44,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:07:44,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:07:44,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:07:44,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:07:44,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:07:44,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:07:44,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:07:44,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:07:44,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:07:44,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:07:44,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:07:44,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:07:44,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:07:44,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:07:44,419 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 14:07:44,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:07:44,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:07:44,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:07:44,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:07:44,439 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:07:44,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:07:44,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:07:44,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:07:44,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:07:44,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:07:44,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:07:44,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:07:44,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:07:44,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:07:44,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:07:44,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:07:44,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:07:44,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:07:44,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:07:44,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:07:44,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:07:44,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:07:44,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:07:44,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:07:44,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:07:44,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:07:44,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:44,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:07:44,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:07:44,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 14:07:44,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:07:44,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:07:44,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:07:44,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:07:44,782 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:07:44,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-20 14:07:44,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c4f3e4d/14ea8a080b8042d5a47095db7e730b1b/FLAG57ca2ee31 [2020-07-20 14:07:45,514 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:07:45,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-20 14:07:45,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c4f3e4d/14ea8a080b8042d5a47095db7e730b1b/FLAG57ca2ee31 [2020-07-20 14:07:45,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c4f3e4d/14ea8a080b8042d5a47095db7e730b1b [2020-07-20 14:07:45,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:07:45,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:07:45,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:07:45,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:07:45,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:07:45,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:07:45" (1/1) ... [2020-07-20 14:07:45,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:45, skipping insertion in model container [2020-07-20 14:07:45,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:07:45" (1/1) ... [2020-07-20 14:07:45,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:07:45,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:07:46,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:07:46,178 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:07:46,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:07:46,477 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:07:46,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46 WrapperNode [2020-07-20 14:07:46,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:07:46,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:07:46,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:07:46,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:07:46,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (1/1) ... [2020-07-20 14:07:46,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:07:46,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:07:46,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:07:46,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:07:46,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (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 14:07:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:07:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:07:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:07:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:07:47,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:07:47,875 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:07:47,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:47 BoogieIcfgContainer [2020-07-20 14:07:47,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:07:47,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:07:47,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:07:47,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:07:47,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:07:45" (1/3) ... [2020-07-20 14:07:47,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd41477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:47, skipping insertion in model container [2020-07-20 14:07:47,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:46" (2/3) ... [2020-07-20 14:07:47,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd41477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:47, skipping insertion in model container [2020-07-20 14:07:47,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:47" (3/3) ... [2020-07-20 14:07:47,892 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-20 14:07:47,905 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:07:47,915 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:07:47,932 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:07:47,962 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:07:47,963 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:07:47,963 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:07:47,963 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:07:47,963 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:07:47,963 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:07:47,964 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:07:47,964 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:07:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:07:48,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-20 14:07:48,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:48,003 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] [2020-07-20 14:07:48,003 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:48,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:48,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-20 14:07:48,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:48,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001121382] [2020-07-20 14:07:48,021 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 14:07:48,240 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:48,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:48,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:48,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:48,342 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 14:07:48,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:48,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001121382] [2020-07-20 14:07:48,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:48,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:48,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842816766] [2020-07-20 14:07:48,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:48,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:48,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:48,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:48,375 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:07:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:49,309 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 14:07:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:49,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-07-20 14:07:49,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:49,328 INFO L225 Difference]: With dead ends: 619 [2020-07-20 14:07:49,328 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 14:07:49,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 14:07:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 14:07:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 14:07:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 14:07:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 14:07:49,407 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 96 [2020-07-20 14:07:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:49,409 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 14:07:49,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 14:07:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-20 14:07:49,415 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:49,415 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] [2020-07-20 14:07:49,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:49,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:49,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:49,631 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-20 14:07:49,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:49,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3151841] [2020-07-20 14:07:49,631 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 14:07:49,732 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:49,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:49,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:49,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:49,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:49,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3151841] [2020-07-20 14:07:49,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:49,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:49,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765869025] [2020-07-20 14:07:49,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:49,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:49,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:49,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:49,784 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 14:07:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:50,473 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-20 14:07:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:50,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-20 14:07:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:50,480 INFO L225 Difference]: With dead ends: 782 [2020-07-20 14:07:50,481 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 14:07:50,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 14:07:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 14:07:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-20 14:07:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-20 14:07:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-20 14:07:50,522 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 105 [2020-07-20 14:07:50,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:50,522 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-20 14:07:50,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:50,523 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-20 14:07:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-20 14:07:50,526 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:50,526 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 14:07:50,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:50,741 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:50,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:50,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-07-20 14:07:50,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:50,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404030606] [2020-07-20 14:07:50,744 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 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 14:07:50,839 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:50,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:50,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:07:50,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:07:50,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:07:50,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404030606] [2020-07-20 14:07:50,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 14:07:50,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 14:07:50,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907643111] [2020-07-20 14:07:50,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 14:07:50,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:50,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 14:07:50,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:50,994 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-20 14:07:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:51,709 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-20 14:07:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 14:07:51,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-07-20 14:07:51,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:51,716 INFO L225 Difference]: With dead ends: 1386 [2020-07-20 14:07:51,717 INFO L226 Difference]: Without dead ends: 923 [2020-07-20 14:07:51,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 226 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 14:07:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-20 14:07:51,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-20 14:07:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-20 14:07:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-20 14:07:51,758 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 117 [2020-07-20 14:07:51,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:51,758 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-20 14:07:51,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 14:07:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-20 14:07:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 14:07:51,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:51,765 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:51,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:51,982 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:51,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1902832748, now seen corresponding path program 1 times [2020-07-20 14:07:51,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:51,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644085724] [2020-07-20 14:07:51,984 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 14:07:52,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:52,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:52,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:52,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:07:52,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:52,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644085724] [2020-07-20 14:07:52,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:52,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:52,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465200425] [2020-07-20 14:07:52,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:52,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:52,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:52,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:52,121 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-20 14:07:52,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:52,816 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-20 14:07:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:52,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 14:07:52,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:52,826 INFO L225 Difference]: With dead ends: 2130 [2020-07-20 14:07:52,826 INFO L226 Difference]: Without dead ends: 1213 [2020-07-20 14:07:52,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 14:07:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-20 14:07:52,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-20 14:07:52,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-20 14:07:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-20 14:07:52,879 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 125 [2020-07-20 14:07:52,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:52,880 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-20 14:07:52,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-20 14:07:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 14:07:52,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:52,889 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:53,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:53,103 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:53,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1880125214, now seen corresponding path program 1 times [2020-07-20 14:07:53,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:53,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384781453] [2020-07-20 14:07:53,106 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 14:07:53,204 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:53,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:53,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:53,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 14:07:53,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:53,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384781453] [2020-07-20 14:07:53,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:53,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:53,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122121975] [2020-07-20 14:07:53,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:53,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:53,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:53,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:53,247 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 3 states. [2020-07-20 14:07:53,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:53,884 INFO L93 Difference]: Finished difference Result 3595 states and 4812 transitions. [2020-07-20 14:07:53,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:53,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-07-20 14:07:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:53,905 INFO L225 Difference]: With dead ends: 3595 [2020-07-20 14:07:53,905 INFO L226 Difference]: Without dead ends: 2390 [2020-07-20 14:07:53,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 14:07:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-07-20 14:07:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2380. [2020-07-20 14:07:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-07-20 14:07:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3112 transitions. [2020-07-20 14:07:53,996 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3112 transitions. Word has length 131 [2020-07-20 14:07:53,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:53,997 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3112 transitions. [2020-07-20 14:07:53,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:53,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3112 transitions. [2020-07-20 14:07:54,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 14:07:54,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:54,011 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-20 14:07:54,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:54,226 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:54,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:54,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1978590773, now seen corresponding path program 1 times [2020-07-20 14:07:54,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:54,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631112421] [2020-07-20 14:07:54,228 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 14:07:54,346 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:54,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:54,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:54,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:54,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:54,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631112421] [2020-07-20 14:07:54,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:54,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:54,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531082564] [2020-07-20 14:07:54,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:54,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:54,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:54,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:54,473 INFO L87 Difference]: Start difference. First operand 2380 states and 3112 transitions. Second operand 6 states. [2020-07-20 14:07:55,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:55,617 INFO L93 Difference]: Finished difference Result 5458 states and 7301 transitions. [2020-07-20 14:07:55,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:55,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-20 14:07:55,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:55,639 INFO L225 Difference]: With dead ends: 5458 [2020-07-20 14:07:55,639 INFO L226 Difference]: Without dead ends: 3084 [2020-07-20 14:07:55,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 282 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 14:07:55,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-07-20 14:07:55,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3036. [2020-07-20 14:07:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3036 states. [2020-07-20 14:07:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 3925 transitions. [2020-07-20 14:07:55,758 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 3925 transitions. Word has length 143 [2020-07-20 14:07:55,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:55,758 INFO L479 AbstractCegarLoop]: Abstraction has 3036 states and 3925 transitions. [2020-07-20 14:07:55,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 3925 transitions. [2020-07-20 14:07:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 14:07:55,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:55,768 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:55,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:55,983 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:55,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:55,984 INFO L82 PathProgramCache]: Analyzing trace with hash 605629041, now seen corresponding path program 1 times [2020-07-20 14:07:55,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:55,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35448982] [2020-07-20 14:07:55,985 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 14:07:56,105 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:56,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:56,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:56,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:07:56,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:07:56,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35448982] [2020-07-20 14:07:56,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:56,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:56,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722495126] [2020-07-20 14:07:56,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:56,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:56,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:56,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:56,214 INFO L87 Difference]: Start difference. First operand 3036 states and 3925 transitions. Second operand 6 states. [2020-07-20 14:07:57,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:57,148 INFO L93 Difference]: Finished difference Result 6128 states and 7987 transitions. [2020-07-20 14:07:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:07:57,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-20 14:07:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:57,170 INFO L225 Difference]: With dead ends: 6128 [2020-07-20 14:07:57,170 INFO L226 Difference]: Without dead ends: 3098 [2020-07-20 14:07:57,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:07:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-07-20 14:07:57,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3074. [2020-07-20 14:07:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3074 states. [2020-07-20 14:07:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 3718 transitions. [2020-07-20 14:07:57,266 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 3718 transitions. Word has length 145 [2020-07-20 14:07:57,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:57,266 INFO L479 AbstractCegarLoop]: Abstraction has 3074 states and 3718 transitions. [2020-07-20 14:07:57,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 3718 transitions. [2020-07-20 14:07:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 14:07:57,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:57,275 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:07:57,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:57,488 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:57,489 INFO L82 PathProgramCache]: Analyzing trace with hash -183412167, now seen corresponding path program 1 times [2020-07-20 14:07:57,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:57,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145399741] [2020-07-20 14:07:57,490 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 14:07:57,586 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:57,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:57,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:07:57,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 14:07:57,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:57,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145399741] [2020-07-20 14:07:57,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:57,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:57,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159089545] [2020-07-20 14:07:57,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:57,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:57,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:57,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:57,633 INFO L87 Difference]: Start difference. First operand 3074 states and 3718 transitions. Second operand 5 states. [2020-07-20 14:07:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:58,531 INFO L93 Difference]: Finished difference Result 8135 states and 10324 transitions. [2020-07-20 14:07:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:58,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-20 14:07:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:58,555 INFO L225 Difference]: With dead ends: 8135 [2020-07-20 14:07:58,556 INFO L226 Difference]: Without dead ends: 5067 [2020-07-20 14:07:58,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 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 14:07:58,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2020-07-20 14:07:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 4995. [2020-07-20 14:07:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4995 states. [2020-07-20 14:07:58,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 5940 transitions. [2020-07-20 14:07:58,704 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 5940 transitions. Word has length 147 [2020-07-20 14:07:58,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:58,704 INFO L479 AbstractCegarLoop]: Abstraction has 4995 states and 5940 transitions. [2020-07-20 14:07:58,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:58,704 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 5940 transitions. [2020-07-20 14:07:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 14:07:58,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:58,719 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 14:07:58,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:58,933 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:58,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1998620505, now seen corresponding path program 1 times [2020-07-20 14:07:58,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:58,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765532096] [2020-07-20 14:07:58,934 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 14:07:59,064 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:59,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:59,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:59,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:07:59,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:07:59,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765532096] [2020-07-20 14:07:59,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:59,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:59,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019674259] [2020-07-20 14:07:59,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:59,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:59,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:59,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:59,225 INFO L87 Difference]: Start difference. First operand 4995 states and 5940 transitions. Second operand 6 states. [2020-07-20 14:07:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:59,804 INFO L93 Difference]: Finished difference Result 9581 states and 11681 transitions. [2020-07-20 14:07:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:07:59,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-20 14:07:59,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:59,825 INFO L225 Difference]: With dead ends: 9581 [2020-07-20 14:07:59,826 INFO L226 Difference]: Without dead ends: 4592 [2020-07-20 14:07:59,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 364 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 14:07:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2020-07-20 14:07:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 4524. [2020-07-20 14:07:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4524 states. [2020-07-20 14:07:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 5219 transitions. [2020-07-20 14:07:59,947 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 5219 transitions. Word has length 185 [2020-07-20 14:07:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:59,947 INFO L479 AbstractCegarLoop]: Abstraction has 4524 states and 5219 transitions. [2020-07-20 14:07:59,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 5219 transitions. [2020-07-20 14:07:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-20 14:07:59,959 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:59,960 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-07-20 14:08:00,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:00,174 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:00,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:00,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1061980931, now seen corresponding path program 1 times [2020-07-20 14:08:00,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:00,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422385846] [2020-07-20 14:08:00,176 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 14:08:00,293 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:00,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:00,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:00,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 14:08:00,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:00,414 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 96 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 14:08:00,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422385846] [2020-07-20 14:08:00,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:00,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:00,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204622480] [2020-07-20 14:08:00,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:00,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:00,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:00,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:00,417 INFO L87 Difference]: Start difference. First operand 4524 states and 5219 transitions. Second operand 6 states. [2020-07-20 14:08:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:01,275 INFO L93 Difference]: Finished difference Result 8599 states and 9962 transitions. [2020-07-20 14:08:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:01,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2020-07-20 14:08:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:01,292 INFO L225 Difference]: With dead ends: 8599 [2020-07-20 14:08:01,293 INFO L226 Difference]: Without dead ends: 3608 [2020-07-20 14:08:01,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 376 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 14:08:01,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2020-07-20 14:08:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3604. [2020-07-20 14:08:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3604 states. [2020-07-20 14:08:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4020 transitions. [2020-07-20 14:08:01,385 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4020 transitions. Word has length 190 [2020-07-20 14:08:01,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:01,386 INFO L479 AbstractCegarLoop]: Abstraction has 3604 states and 4020 transitions. [2020-07-20 14:08:01,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:01,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4020 transitions. [2020-07-20 14:08:01,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-20 14:08:01,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:01,397 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-07-20 14:08:01,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:01,611 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:01,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1021169547, now seen corresponding path program 1 times [2020-07-20 14:08:01,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:01,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370968468] [2020-07-20 14:08:01,613 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 14:08:01,730 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:01,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:01,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:01,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:01,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:01,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370968468] [2020-07-20 14:08:01,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:01,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:01,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726395516] [2020-07-20 14:08:01,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:01,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:01,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:01,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:01,859 INFO L87 Difference]: Start difference. First operand 3604 states and 4020 transitions. Second operand 7 states. [2020-07-20 14:08:03,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:03,068 INFO L93 Difference]: Finished difference Result 8496 states and 9470 transitions. [2020-07-20 14:08:03,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:03,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-20 14:08:03,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:03,099 INFO L225 Difference]: With dead ends: 8496 [2020-07-20 14:08:03,100 INFO L226 Difference]: Without dead ends: 5042 [2020-07-20 14:08:03,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 383 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 14:08:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2020-07-20 14:08:03,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 3020. [2020-07-20 14:08:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3020 states. [2020-07-20 14:08:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 3247 transitions. [2020-07-20 14:08:03,195 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 3247 transitions. Word has length 194 [2020-07-20 14:08:03,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:03,195 INFO L479 AbstractCegarLoop]: Abstraction has 3020 states and 3247 transitions. [2020-07-20 14:08:03,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 3247 transitions. [2020-07-20 14:08:03,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 14:08:03,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:03,203 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:03,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:03,419 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:03,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:03,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1298715091, now seen corresponding path program 1 times [2020-07-20 14:08:03,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:03,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481124642] [2020-07-20 14:08:03,420 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 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 14:08:03,559 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:03,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:03,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:03,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:03,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:03,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481124642] [2020-07-20 14:08:03,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:03,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:03,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554265125] [2020-07-20 14:08:03,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:03,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:03,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:03,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:03,703 INFO L87 Difference]: Start difference. First operand 3020 states and 3247 transitions. Second operand 7 states. [2020-07-20 14:08:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:04,928 INFO L93 Difference]: Finished difference Result 6169 states and 6639 transitions. [2020-07-20 14:08:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:08:04,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-07-20 14:08:04,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:04,935 INFO L225 Difference]: With dead ends: 6169 [2020-07-20 14:08:04,936 INFO L226 Difference]: Without dead ends: 2855 [2020-07-20 14:08:04,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 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 14:08:04,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2020-07-20 14:08:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2853. [2020-07-20 14:08:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2853 states. [2020-07-20 14:08:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3028 transitions. [2020-07-20 14:08:04,989 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3028 transitions. Word has length 201 [2020-07-20 14:08:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:04,989 INFO L479 AbstractCegarLoop]: Abstraction has 2853 states and 3028 transitions. [2020-07-20 14:08:04,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3028 transitions. [2020-07-20 14:08:04,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-20 14:08:04,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:04,998 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, 2, 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] [2020-07-20 14:08:05,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:05,213 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:05,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:05,213 INFO L82 PathProgramCache]: Analyzing trace with hash 15833799, now seen corresponding path program 1 times [2020-07-20 14:08:05,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:05,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117126117] [2020-07-20 14:08:05,214 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:05,345 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:05,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:05,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:08:05,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-20 14:08:05,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-20 14:08:05,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117126117] [2020-07-20 14:08:05,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:05,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:05,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017226670] [2020-07-20 14:08:05,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:05,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:05,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:05,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:05,467 INFO L87 Difference]: Start difference. First operand 2853 states and 3028 transitions. Second operand 7 states. [2020-07-20 14:08:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:06,692 INFO L93 Difference]: Finished difference Result 5392 states and 5716 transitions. [2020-07-20 14:08:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:08:06,693 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-07-20 14:08:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:06,694 INFO L225 Difference]: With dead ends: 5392 [2020-07-20 14:08:06,694 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:08:06,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 448 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 14:08:06,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:08:06,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:08:06,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:08:06,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:08:06,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-07-20 14:08:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:06,708 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:08:06,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:08:06,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:08:06,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:06,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:08:07,539 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 156 [2020-07-20 14:08:07,706 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 156 [2020-07-20 14:08:09,227 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 159 DAG size of output: 93 [2020-07-20 14:08:10,080 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 67 [2020-07-20 14:08:10,892 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 67 [2020-07-20 14:08:10,896 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:08:10,897 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 14:08:10,897 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:08:10,897 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,898 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,898 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,898 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,898 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,899 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:08:10,899 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:08:10,899 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:08:10,899 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:08:10,899 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:08:10,900 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:08:10,901 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:08:10,902 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,903 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,904 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,904 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,904 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-20 14:08:10,904 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:08:10,904 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:08:10,904 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:08:10,905 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:08:10,906 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:08:10,907 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:08:10,908 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:08:10,909 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,910 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:08:10,911 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:08:10,912 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,913 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:08:10,914 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,915 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:08:10,916 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:08:10,917 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,918 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,918 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,918 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse24 (<= ~a11~0 0)) (.cse9 (<= ~a28~0 |old(~a28~0)|)) (.cse20 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0)) (.cse26 (= 1 ~a25~0))) (let ((.cse4 (and .cse24 .cse9 .cse20 .cse19 .cse11 .cse12 .cse26)) (.cse21 (= ~a25~0 |old(~a25~0)|)) (.cse23 (<= ~a28~0 9)) (.cse22 (not (<= 9 |old(~a28~0)|))) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse7 (not (<= |old(~a28~0)| 7))) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse5 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse14 (not (<= |old(~a28~0)| 10))) (.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (or .cse24 (< 0 |old(~a11~0)|))) (.cse25 (<= ~a28~0 10)) (.cse16 (<= ~a25~0 0)) (.cse15 (not (<= |old(~a25~0)| 0))) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse13 (not (<= |old(~a17~0)| 7))) (.cse17 (not (<= 10 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse5) (or .cse0 .cse14 .cse15 .cse16 .cse17 .cse5) (or .cse0 .cse2 .cse3 (not (<= 11 |old(~a28~0)|)) .cse4 .cse5 .cse6) (or .cse1 .cse2 .cse18 (and .cse9 .cse19 .cse10 .cse20 .cse11 .cse21 .cse12) .cse5) (or .cse0 .cse22 (and .cse20 .cse19 .cse23 .cse11 .cse12 .cse21) .cse1 .cse2 .cse15 .cse5) (or .cse22 .cse1 .cse18 (and .cse8 .cse10 .cse23 .cse11 .cse12) .cse5) (or .cse0 .cse7 .cse15 (and .cse24 .cse9 .cse20 .cse11 .cse12 .cse21) .cse5 .cse6) (or .cse0 .cse14 (and .cse8 .cse10 .cse25 .cse11 .cse12) .cse17 .cse5) (or .cse0 .cse22 .cse1 .cse2 .cse3 (and .cse20 .cse19 .cse23 .cse11 .cse12 .cse26) .cse5) (or .cse0 .cse24 .cse22 .cse1 .cse2 .cse15 .cse5 .cse6) (or .cse0 .cse7 .cse2 .cse3 (and .cse9 .cse20 .cse19 .cse11 .cse12 .cse26) .cse5) (or (and .cse24 .cse20 .cse19 .cse25 .cse11 .cse12 .cse26) .cse14 .cse2 .cse3 .cse18 .cse5 .cse6) (or .cse14 (and .cse8 .cse10 .cse25 .cse16 .cse11 .cse12) .cse15 .cse18 .cse13 .cse17)))) [2020-07-20 14:08:10,918 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:08:10,919 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,920 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:08:10,921 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:08:10,922 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:08:10,923 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:08:10,924 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:08:10,925 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:08:10,925 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:08:10,925 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:08:10,925 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:08:10,925 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:08:10,925 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:08:10,925 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 14:08:10,925 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:08:10,926 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:08:10,926 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 14:08:10,926 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse11 (< 7 |old(~a17~0)|)) (.cse13 (<= ~a19~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a25~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse12 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse7 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse13) (and .cse1 .cse7 .cse2 .cse8 .cse13 .cse6) (and .cse0 .cse3 .cse8 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse10 .cse4 .cse11 .cse5) (and .cse3 .cse14 .cse11 .cse12 .cse13) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse9 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 .cse2 .cse8 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-20 14:08:10,926 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:08:10,926 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:08:10,926 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse11 (< 7 |old(~a17~0)|)) (.cse13 (<= ~a19~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a25~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse12 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse7 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse13) (and .cse1 .cse7 .cse2 .cse8 .cse13 .cse6) (and .cse0 .cse3 .cse8 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse10 .cse4 .cse11 .cse5) (and .cse3 .cse14 .cse11 .cse12 .cse13) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse9 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 .cse2 .cse8 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-20 14:08:10,927 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:08:10,927 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:08:10,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:08:10 BoogieIcfgContainer [2020-07-20 14:08:10,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:08:10,954 INFO L168 Benchmark]: Toolchain (without parser) took 25250.13 ms. Allocated memory was 135.8 MB in the beginning and 550.0 MB in the end (delta: 414.2 MB). Free memory was 98.9 MB in the beginning and 196.2 MB in the end (delta: -97.2 MB). Peak memory consumption was 433.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:10,958 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 135.8 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 14:08:10,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.63 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 98.5 MB in the beginning and 167.9 MB in the end (delta: -69.4 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:10,959 INFO L168 Benchmark]: Boogie Preprocessor took 131.17 ms. Allocated memory is still 202.4 MB. Free memory was 167.9 MB in the beginning and 163.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:10,960 INFO L168 Benchmark]: RCFGBuilder took 1272.06 ms. Allocated memory was 202.4 MB in the beginning and 229.1 MB in the end (delta: 26.7 MB). Free memory was 163.5 MB in the beginning and 178.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:10,965 INFO L168 Benchmark]: TraceAbstraction took 23068.95 ms. Allocated memory was 229.1 MB in the beginning and 550.0 MB in the end (delta: 320.9 MB). Free memory was 178.2 MB in the beginning and 196.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 419.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:10,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 135.8 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.63 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 98.5 MB in the beginning and 167.9 MB in the end (delta: -69.4 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.17 ms. Allocated memory is still 202.4 MB. Free memory was 167.9 MB in the beginning and 163.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.06 ms. Allocated memory was 202.4 MB in the beginning and 229.1 MB in the end (delta: 26.7 MB). Free memory was 163.5 MB in the beginning and 178.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23068.95 ms. Allocated memory was 229.1 MB in the beginning and 550.0 MB in the end (delta: 320.9 MB). Free memory was 178.2 MB in the beginning and 196.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 419.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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)) && 8 <= a17) && a17 <= 8) && a19 <= \old(a19)) && a28 <= 7) && 1 == a25)) || ((((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)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && a19 <= 0) && 1 == a25)) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || (((((1 == a19 && a17 <= 8) && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && a28 <= 7)) || ((((a17 <= 8 && a28 <= 9) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a11) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1150 SDtfs, 5151 SDslu, 651 SDs, 0 SdLazy, 8855 SolverSat, 1245 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3428 GetRequests, 3354 SyntacticMatches, 14 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4995occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 2254 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 229 PreInvPairs, 279 NumberOfFragments, 1074 HoareAnnotationTreeSize, 229 FomulaSimplifications, 5199 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4846 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2005 NumberOfCodeBlocks, 2005 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 3385 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106815 SizeOfPredicates, 17 NumberOfNonLiveVariables, 5452 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 1954/2073 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...