/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:27:55,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:27:55,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:27:55,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:27:55,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:27:55,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:27:55,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:27:55,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:27:55,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:27:55,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:27:55,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:27:55,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:27:55,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:27:55,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:27:55,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:27:55,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:27:55,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:27:55,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:27:55,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:27:55,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:27:55,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:27:55,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:27:55,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:27:55,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:27:55,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:27:55,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:27:55,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:27:55,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:27:55,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:27:55,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:27:55,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:27:55,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:27:55,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:27:55,395 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:27:55,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:27:55,396 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:27:55,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:27:55,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:27:55,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:27:55,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:27:55,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:27:55,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:27:55,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:27:55,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:27:55,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:27:55,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:27:55,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:27:55,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:27:55,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:27:55,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:27:55,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:27:55,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:27:55,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:27:55,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:27:55,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:27:55,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:55,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:27:55,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:27:55,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:27:55,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:27:55,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:27:55,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:27:55,728 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:27:55,729 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:27:55,729 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-20 17:27:55,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593ec2d2c/9a103de6292a4fd6aea5d2bf5655c174/FLAG03f40e735 [2020-07-20 17:27:56,478 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:27:56,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-20 17:27:56,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593ec2d2c/9a103de6292a4fd6aea5d2bf5655c174/FLAG03f40e735 [2020-07-20 17:27:56,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593ec2d2c/9a103de6292a4fd6aea5d2bf5655c174 [2020-07-20 17:27:56,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:27:56,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:27:56,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:56,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:27:56,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:27:56,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:56" (1/1) ... [2020-07-20 17:27:56,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:56, skipping insertion in model container [2020-07-20 17:27:56,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:56" (1/1) ... [2020-07-20 17:27:56,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:27:56,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:27:57,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:57,351 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:27:57,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:57,467 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:27:57,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57 WrapperNode [2020-07-20 17:27:57,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:57,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:27:57,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:27:57,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:27:57,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... [2020-07-20 17:27:57,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:27:57,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:27:57,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:27:57,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:27:57,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:27:57,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:27:57,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:27:57,670 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:27:57,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:27:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:27:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:27:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:27:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:27:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:27:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:27:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:27:59,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:27:59,122 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:27:59,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:59 BoogieIcfgContainer [2020-07-20 17:27:59,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:27:59,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:27:59,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:27:59,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:27:59,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:27:56" (1/3) ... [2020-07-20 17:27:59,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:59, skipping insertion in model container [2020-07-20 17:27:59,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:57" (2/3) ... [2020-07-20 17:27:59,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:59, skipping insertion in model container [2020-07-20 17:27:59,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:59" (3/3) ... [2020-07-20 17:27:59,138 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-20 17:27:59,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:27:59,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:27:59,174 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:27:59,208 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:27:59,209 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:27:59,210 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:27:59,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:27:59,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:27:59,211 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:27:59,211 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:27:59,211 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:27:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:27:59,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-20 17:27:59,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:59,270 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 17:27:59,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:59,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-20 17:27:59,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:59,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-20 17:27:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:59,537 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:59,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:59,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:59,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:59,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:59,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-20 17:27:59,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:59,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:59,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568732161] [2020-07-20 17:27:59,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:59,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:59,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:59,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:59,690 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:28:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:00,729 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 17:28:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:00,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-07-20 17:28:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:00,750 INFO L225 Difference]: With dead ends: 619 [2020-07-20 17:28:00,751 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 17:28:00,760 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 17:28:00,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 17:28:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 17:28:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 17:28:00,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 17:28:00,844 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 96 [2020-07-20 17:28:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:00,845 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 17:28:00,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 17:28:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-20 17:28:00,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:00,853 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 17:28:01,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:01,069 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:01,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:01,070 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-20 17:28:01,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:01,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284502418] [2020-07-20 17:28:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:01,167 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:01,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:01,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:01,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:01,209 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 17:28:01,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:01,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284502418] [2020-07-20 17:28:01,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:01,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:01,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697396282] [2020-07-20 17:28:01,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:01,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:01,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:01,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:01,214 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 17:28:01,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:01,940 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-20 17:28:01,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:01,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-20 17:28:01,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:01,947 INFO L225 Difference]: With dead ends: 782 [2020-07-20 17:28:01,948 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 17:28:01,950 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 17:28:01,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 17:28:01,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-20 17:28:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-20 17:28:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-20 17:28:02,004 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 105 [2020-07-20 17:28:02,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:02,006 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-20 17:28:02,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-20 17:28:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-20 17:28:02,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:02,011 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 17:28:02,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:02,226 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:02,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-07-20 17:28:02,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:02,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187746438] [2020-07-20 17:28:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:02,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:02,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:02,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:02,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:02,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:02,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187746438] [2020-07-20 17:28:02,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:02,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:02,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603393617] [2020-07-20 17:28:02,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:02,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:02,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:02,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:02,361 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 3 states. [2020-07-20 17:28:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:03,044 INFO L93 Difference]: Finished difference Result 1378 states and 1794 transitions. [2020-07-20 17:28:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:03,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-07-20 17:28:03,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:03,056 INFO L225 Difference]: With dead ends: 1378 [2020-07-20 17:28:03,056 INFO L226 Difference]: Without dead ends: 915 [2020-07-20 17:28:03,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-07-20 17:28:03,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 909. [2020-07-20 17:28:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-07-20 17:28:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1153 transitions. [2020-07-20 17:28:03,120 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1153 transitions. Word has length 117 [2020-07-20 17:28:03,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:03,122 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1153 transitions. [2020-07-20 17:28:03,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:03,123 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1153 transitions. [2020-07-20 17:28:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 17:28:03,136 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:03,136 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 17:28:03,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:03,353 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:03,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:03,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1902832748, now seen corresponding path program 1 times [2020-07-20 17:28:03,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:03,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987340454] [2020-07-20 17:28:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:03,454 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:03,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:03,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:03,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:03,500 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 17:28:03,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:03,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987340454] [2020-07-20 17:28:03,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:03,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:03,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404849433] [2020-07-20 17:28:03,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:03,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:03,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:03,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:03,504 INFO L87 Difference]: Start difference. First operand 909 states and 1153 transitions. Second operand 3 states. [2020-07-20 17:28:04,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:04,324 INFO L93 Difference]: Finished difference Result 2101 states and 2761 transitions. [2020-07-20 17:28:04,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:04,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 17:28:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:04,343 INFO L225 Difference]: With dead ends: 2101 [2020-07-20 17:28:04,343 INFO L226 Difference]: Without dead ends: 1198 [2020-07-20 17:28:04,347 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 17:28:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-07-20 17:28:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1197. [2020-07-20 17:28:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-07-20 17:28:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1554 transitions. [2020-07-20 17:28:04,431 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1554 transitions. Word has length 125 [2020-07-20 17:28:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:04,432 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1554 transitions. [2020-07-20 17:28:04,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1554 transitions. [2020-07-20 17:28:04,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 17:28:04,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:04,443 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-07-20 17:28:04,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:04,657 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:04,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:04,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1867867428, now seen corresponding path program 1 times [2020-07-20 17:28:04,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:04,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638758997] [2020-07-20 17:28:04,659 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:04,786 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:04,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:04,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:04,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:04,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:04,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638758997] [2020-07-20 17:28:04,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:04,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:04,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869682030] [2020-07-20 17:28:04,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:04,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:04,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:04,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:04,966 INFO L87 Difference]: Start difference. First operand 1197 states and 1554 transitions. Second operand 6 states. [2020-07-20 17:28:06,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:06,143 INFO L93 Difference]: Finished difference Result 2745 states and 3656 transitions. [2020-07-20 17:28:06,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:06,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 17:28:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:06,154 INFO L225 Difference]: With dead ends: 2745 [2020-07-20 17:28:06,155 INFO L226 Difference]: Without dead ends: 1554 [2020-07-20 17:28:06,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-07-20 17:28:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1525. [2020-07-20 17:28:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2020-07-20 17:28:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1965 transitions. [2020-07-20 17:28:06,217 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1965 transitions. Word has length 129 [2020-07-20 17:28:06,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:06,217 INFO L479 AbstractCegarLoop]: Abstraction has 1525 states and 1965 transitions. [2020-07-20 17:28:06,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1965 transitions. [2020-07-20 17:28:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 17:28:06,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:06,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:06,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:06,437 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:06,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:06,438 INFO L82 PathProgramCache]: Analyzing trace with hash -429451800, now seen corresponding path program 1 times [2020-07-20 17:28:06,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:06,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163704582] [2020-07-20 17:28:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:06,532 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:06,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:06,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:06,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:06,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:06,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163704582] [2020-07-20 17:28:06,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:06,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:06,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009866102] [2020-07-20 17:28:06,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:06,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:06,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:06,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:06,575 INFO L87 Difference]: Start difference. First operand 1525 states and 1965 transitions. Second operand 3 states. [2020-07-20 17:28:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:07,296 INFO L93 Difference]: Finished difference Result 4536 states and 5943 transitions. [2020-07-20 17:28:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:07,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 17:28:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:07,313 INFO L225 Difference]: With dead ends: 4536 [2020-07-20 17:28:07,313 INFO L226 Difference]: Without dead ends: 3017 [2020-07-20 17:28:07,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-07-20 17:28:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2020-07-20 17:28:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-07-20 17:28:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3879 transitions. [2020-07-20 17:28:07,445 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3879 transitions. Word has length 133 [2020-07-20 17:28:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:07,446 INFO L479 AbstractCegarLoop]: Abstraction has 3017 states and 3879 transitions. [2020-07-20 17:28:07,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3879 transitions. [2020-07-20 17:28:07,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 17:28:07,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:07,456 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 17:28:07,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:07,670 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:07,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:07,670 INFO L82 PathProgramCache]: Analyzing trace with hash 605629041, now seen corresponding path program 1 times [2020-07-20 17:28:07,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:07,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259255676] [2020-07-20 17:28:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:07,771 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:07,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:07,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:07,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:07,819 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 17:28:07,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:07,892 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 17:28:07,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259255676] [2020-07-20 17:28:07,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:07,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:07,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730295566] [2020-07-20 17:28:07,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:07,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:07,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:07,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:07,895 INFO L87 Difference]: Start difference. First operand 3017 states and 3879 transitions. Second operand 6 states. [2020-07-20 17:28:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:08,798 INFO L93 Difference]: Finished difference Result 6088 states and 7892 transitions. [2020-07-20 17:28:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:28:08,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-20 17:28:08,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:08,818 INFO L225 Difference]: With dead ends: 6088 [2020-07-20 17:28:08,818 INFO L226 Difference]: Without dead ends: 3077 [2020-07-20 17:28:08,828 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 17:28:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2020-07-20 17:28:08,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 3055. [2020-07-20 17:28:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3055 states. [2020-07-20 17:28:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 3691 transitions. [2020-07-20 17:28:08,930 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 3691 transitions. Word has length 145 [2020-07-20 17:28:08,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:08,931 INFO L479 AbstractCegarLoop]: Abstraction has 3055 states and 3691 transitions. [2020-07-20 17:28:08,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 3691 transitions. [2020-07-20 17:28:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 17:28:08,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:08,940 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 17:28:09,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:09,155 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:09,156 INFO L82 PathProgramCache]: Analyzing trace with hash -183412167, now seen corresponding path program 1 times [2020-07-20 17:28:09,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:09,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912280610] [2020-07-20 17:28:09,157 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:09,254 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:09,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:09,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:28:09,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:09,302 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 17:28:09,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:09,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912280610] [2020-07-20 17:28:09,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:09,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:28:09,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056345129] [2020-07-20 17:28:09,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:28:09,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:09,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:28:09,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:09,305 INFO L87 Difference]: Start difference. First operand 3055 states and 3691 transitions. Second operand 5 states. [2020-07-20 17:28:10,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:10,188 INFO L93 Difference]: Finished difference Result 8100 states and 10229 transitions. [2020-07-20 17:28:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:10,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-20 17:28:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:10,216 INFO L225 Difference]: With dead ends: 8100 [2020-07-20 17:28:10,216 INFO L226 Difference]: Without dead ends: 5051 [2020-07-20 17:28:10,265 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 17:28:10,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2020-07-20 17:28:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4979. [2020-07-20 17:28:10,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4979 states. [2020-07-20 17:28:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 5905 transitions. [2020-07-20 17:28:10,402 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 5905 transitions. Word has length 147 [2020-07-20 17:28:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:10,403 INFO L479 AbstractCegarLoop]: Abstraction has 4979 states and 5905 transitions. [2020-07-20 17:28:10,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:28:10,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 5905 transitions. [2020-07-20 17:28:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 17:28:10,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:10,417 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 17:28:10,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:10,631 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:10,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:10,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1998620505, now seen corresponding path program 1 times [2020-07-20 17:28:10,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:10,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346799281] [2020-07-20 17:28:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:10,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:10,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:10,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:10,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:10,820 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 17:28:10,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:10,905 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 17:28:10,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346799281] [2020-07-20 17:28:10,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:10,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:10,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277019031] [2020-07-20 17:28:10,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:10,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:10,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:10,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:10,908 INFO L87 Difference]: Start difference. First operand 4979 states and 5905 transitions. Second operand 6 states. [2020-07-20 17:28:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:11,558 INFO L93 Difference]: Finished difference Result 9553 states and 11596 transitions. [2020-07-20 17:28:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:28:11,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-20 17:28:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:11,580 INFO L225 Difference]: With dead ends: 9553 [2020-07-20 17:28:11,581 INFO L226 Difference]: Without dead ends: 4580 [2020-07-20 17:28:11,591 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 17:28:11,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2020-07-20 17:28:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 4512. [2020-07-20 17:28:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4512 states. [2020-07-20 17:28:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 5191 transitions. [2020-07-20 17:28:11,706 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 5191 transitions. Word has length 185 [2020-07-20 17:28:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:11,707 INFO L479 AbstractCegarLoop]: Abstraction has 4512 states and 5191 transitions. [2020-07-20 17:28:11,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 5191 transitions. [2020-07-20 17:28:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-20 17:28:11,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:11,723 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 17:28:11,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:11,937 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:11,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1061980931, now seen corresponding path program 1 times [2020-07-20 17:28:11,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:11,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609175469] [2020-07-20 17:28:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:12,073 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:12,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:12,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:12,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:12,124 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 17:28:12,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:12,202 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 17:28:12,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609175469] [2020-07-20 17:28:12,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:12,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:12,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590732092] [2020-07-20 17:28:12,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:12,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:12,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:12,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:12,205 INFO L87 Difference]: Start difference. First operand 4512 states and 5191 transitions. Second operand 6 states. [2020-07-20 17:28:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:13,170 INFO L93 Difference]: Finished difference Result 8575 states and 9907 transitions. [2020-07-20 17:28:13,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:13,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2020-07-20 17:28:13,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:13,187 INFO L225 Difference]: With dead ends: 8575 [2020-07-20 17:28:13,187 INFO L226 Difference]: Without dead ends: 3600 [2020-07-20 17:28:13,203 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 17:28:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2020-07-20 17:28:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3596. [2020-07-20 17:28:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3596 states. [2020-07-20 17:28:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 4004 transitions. [2020-07-20 17:28:13,389 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 4004 transitions. Word has length 190 [2020-07-20 17:28:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:13,390 INFO L479 AbstractCegarLoop]: Abstraction has 3596 states and 4004 transitions. [2020-07-20 17:28:13,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:13,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 4004 transitions. [2020-07-20 17:28:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-20 17:28:13,400 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:13,400 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 17:28:13,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:13,615 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:13,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:13,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1021169547, now seen corresponding path program 1 times [2020-07-20 17:28:13,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:13,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928156693] [2020-07-20 17:28:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:13,734 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:13,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:13,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:13,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:13,790 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 17:28:13,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:13,901 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 17:28:13,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928156693] [2020-07-20 17:28:13,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:13,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:13,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672876106] [2020-07-20 17:28:13,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:13,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:13,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:13,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:13,905 INFO L87 Difference]: Start difference. First operand 3596 states and 4004 transitions. Second operand 7 states. [2020-07-20 17:28:15,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:15,459 INFO L93 Difference]: Finished difference Result 8480 states and 9436 transitions. [2020-07-20 17:28:15,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:15,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-20 17:28:15,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:15,490 INFO L225 Difference]: With dead ends: 8480 [2020-07-20 17:28:15,490 INFO L226 Difference]: Without dead ends: 5034 [2020-07-20 17:28:15,499 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 17:28:15,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2020-07-20 17:28:15,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 3302. [2020-07-20 17:28:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3302 states. [2020-07-20 17:28:15,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3302 states to 3302 states and 3556 transitions. [2020-07-20 17:28:15,599 INFO L78 Accepts]: Start accepts. Automaton has 3302 states and 3556 transitions. Word has length 194 [2020-07-20 17:28:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:15,599 INFO L479 AbstractCegarLoop]: Abstraction has 3302 states and 3556 transitions. [2020-07-20 17:28:15,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3302 states and 3556 transitions. [2020-07-20 17:28:15,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 17:28:15,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:15,609 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 17:28:15,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:15,824 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:15,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1298715091, now seen corresponding path program 1 times [2020-07-20 17:28:15,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:15,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125694234] [2020-07-20 17:28:15,826 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 17:28:15,954 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:15,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:15,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:15,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:16,008 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 17:28:16,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:16,091 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 17:28:16,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125694234] [2020-07-20 17:28:16,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:16,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:16,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106733368] [2020-07-20 17:28:16,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:16,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:16,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:16,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:16,094 INFO L87 Difference]: Start difference. First operand 3302 states and 3556 transitions. Second operand 7 states. [2020-07-20 17:28:17,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:17,405 INFO L93 Difference]: Finished difference Result 6739 states and 7266 transitions. [2020-07-20 17:28:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:28:17,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-07-20 17:28:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:17,414 INFO L225 Difference]: With dead ends: 6739 [2020-07-20 17:28:17,414 INFO L226 Difference]: Without dead ends: 3143 [2020-07-20 17:28:17,422 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 17:28:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2020-07-20 17:28:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 2851. [2020-07-20 17:28:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2020-07-20 17:28:17,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3026 transitions. [2020-07-20 17:28:17,474 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3026 transitions. Word has length 201 [2020-07-20 17:28:17,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:17,475 INFO L479 AbstractCegarLoop]: Abstraction has 2851 states and 3026 transitions. [2020-07-20 17:28:17,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:17,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3026 transitions. [2020-07-20 17:28:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-20 17:28:17,483 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:17,484 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 17:28:17,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:17,700 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:17,700 INFO L82 PathProgramCache]: Analyzing trace with hash 15833799, now seen corresponding path program 1 times [2020-07-20 17:28:17,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:17,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757950642] [2020-07-20 17:28:17,701 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 17:28:17,850 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:17,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:17,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:28:17,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:17,900 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 17:28:17,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:17,990 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 17:28:17,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757950642] [2020-07-20 17:28:17,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:17,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:17,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644071249] [2020-07-20 17:28:17,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:17,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:17,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:17,992 INFO L87 Difference]: Start difference. First operand 2851 states and 3026 transitions. Second operand 7 states. [2020-07-20 17:28:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:19,196 INFO L93 Difference]: Finished difference Result 5390 states and 5714 transitions. [2020-07-20 17:28:19,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:28:19,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-07-20 17:28:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:19,201 INFO L225 Difference]: With dead ends: 5390 [2020-07-20 17:28:19,201 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:28:19,211 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 17:28:19,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:28:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:28:19,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:28:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:28:19,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-07-20 17:28:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:19,213 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:28:19,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:28:19,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:28:19,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:19,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:28:20,126 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 142 [2020-07-20 17:28:20,298 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 142 [2020-07-20 17:28:21,537 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 155 DAG size of output: 94 [2020-07-20 17:28:22,367 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 67 [2020-07-20 17:28:23,226 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 67 [2020-07-20 17:28:23,231 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:23,232 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 17:28:23,232 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:23,232 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,233 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:28:23,234 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:23,235 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,236 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:28:23,237 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:28:23,237 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:28:23,237 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:28:23,237 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:28:23,238 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:28:23,238 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:28:23,239 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:23,239 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:23,239 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:28:23,240 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:28:23,241 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:28:23,241 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:23,242 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:23,242 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:28:23,242 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,244 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,244 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,244 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,244 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:28:23,245 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,246 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:28:23,247 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:28:23,248 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:28:23,248 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:28:23,248 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:28:23,249 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:28:23,250 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:28:23,250 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:28:23,251 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:28:23,252 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:28:23,253 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,254 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:23,254 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,254 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:28:23,256 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:28:23,257 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:28:23,258 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,259 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:28:23,260 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:28:23,261 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,262 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,262 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,262 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse23 (<= ~a11~0 0)) (.cse3 (<= ~a28~0 |old(~a28~0)|)) (.cse4 (<= ~a17~0 8)) (.cse5 (<= 8 ~a17~0)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0)) (.cse25 (= 1 ~a25~0))) (let ((.cse12 (and .cse23 .cse3 .cse4 .cse5 .cse6 .cse7 .cse25)) (.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse15 (not (<= |old(~a17~0)| 7))) (.cse19 (<= ~a25~0 0)) (.cse11 (not (= 1 |old(~a25~0)|))) (.cse14 (not (<= |old(~a28~0)| 7))) (.cse21 (not (<= 9 |old(~a28~0)|))) (.cse22 (<= ~a28~0 9)) (.cse10 (not (= 1 |old(~a19~0)|))) (.cse17 (not (<= |old(~a28~0)| 10))) (.cse20 (not (<= 10 |old(~a28~0)|))) (.cse16 (<= ~a17~0 |old(~a17~0)|)) (.cse24 (<= ~a28~0 10)) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse18 (not (<= |old(~a25~0)| 0))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse9 (not (<= |old(~a17~0)| 8))) (.cse13 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 .cse0 .cse1 .cse11 .cse12 .cse9 .cse13) (or .cse10 .cse14 .cse15 .cse9 (and .cse16 .cse3 .cse6 .cse7)) (or .cse10 .cse17 .cse18 .cse19 .cse20 .cse9) (or .cse10 .cse1 .cse11 (not (<= 11 |old(~a28~0)|)) .cse12 .cse9 .cse13) (or .cse10 .cse21 (and .cse4 .cse5 .cse22 .cse6 .cse7 .cse8) .cse0 .cse1 .cse18 .cse9) (or .cse10 .cse14 .cse18 (and .cse23 .cse3 .cse4 .cse6 .cse7 .cse8) .cse9 .cse13) (or .cse17 .cse18 .cse2 .cse15 .cse20 (and .cse16 .cse24 .cse19 .cse6 .cse7)) (or (and .cse23 .cse4 .cse5 .cse24 .cse6 .cse7 .cse25) .cse17 .cse1 .cse11 .cse2 .cse20 .cse9 .cse13) (or .cse10 .cse14 .cse1 .cse11 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse25) .cse9) (or .cse10 .cse21 .cse0 .cse1 .cse11 (and .cse4 .cse5 .cse22 .cse6 .cse7 .cse25) .cse9) (or .cse10 .cse23 .cse21 .cse0 .cse1 .cse18 .cse9 .cse13) (or .cse10 .cse17 .cse23 .cse20 .cse9 .cse13) (or .cse23 .cse14 .cse1 .cse2 .cse9 .cse13) (or .cse21 .cse0 .cse2 .cse9 (and .cse16 .cse22 .cse6 .cse7)) (or .cse10 .cse17 .cse20 .cse9 (and .cse16 .cse24 .cse6 .cse7)) (or .cse23 .cse0 .cse1 .cse18 .cse2 .cse9 .cse13)))) [2020-07-20 17:28:23,262 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,262 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:28:23,263 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,264 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:28:23,265 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:28:23,266 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:28:23,267 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:23,268 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:28:23,269 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:23,269 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:23,269 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:28:23,269 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:28:23,269 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:23,269 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 17:28:23,269 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:28:23,269 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:23,270 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 17:28:23,270 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse8 (<= ~a25~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a17~0 7)) (.cse10 (< 7 |old(~a17~0)|)) (.cse12 (<= ~a19~0 0)) (.cse13 (<= ~a11~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse11 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse13 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse12) (and .cse1 .cse13 .cse2 .cse7 .cse12 .cse6) (and .cse0 .cse3 .cse7 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse9 .cse4 .cse10 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse8 .cse11) (not (<= |old(~a25~0)| 0)) (and .cse14 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse13 (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse11 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-20 17:28:23,270 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:23,270 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:23,270 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse8 (<= ~a25~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a17~0 7)) (.cse10 (< 7 |old(~a17~0)|)) (.cse12 (<= ~a19~0 0)) (.cse13 (<= ~a11~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse11 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse13 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse12) (and .cse1 .cse13 .cse2 .cse7 .cse12 .cse6) (and .cse0 .cse3 .cse7 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse9 .cse4 .cse10 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse8 .cse11) (not (<= |old(~a25~0)| 0)) (and .cse14 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse13 (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse11 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-20 17:28:23,270 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:28:23,271 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:28:23,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:28:23 BoogieIcfgContainer [2020-07-20 17:28:23,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:28:23,307 INFO L168 Benchmark]: Toolchain (without parser) took 26591.01 ms. Allocated memory was 135.8 MB in the beginning and 636.5 MB in the end (delta: 500.7 MB). Free memory was 98.6 MB in the beginning and 507.4 MB in the end (delta: -408.8 MB). Peak memory consumption was 543.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:23,307 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:28:23,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.97 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 98.1 MB in the beginning and 168.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:23,309 INFO L168 Benchmark]: Boogie Preprocessor took 141.08 ms. Allocated memory is still 201.9 MB. Free memory was 168.7 MB in the beginning and 163.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:23,310 INFO L168 Benchmark]: RCFGBuilder took 1519.53 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 163.6 MB in the beginning and 178.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:23,310 INFO L168 Benchmark]: TraceAbstraction took 24174.32 ms. Allocated memory was 230.2 MB in the beginning and 636.5 MB in the end (delta: 406.3 MB). Free memory was 178.7 MB in the beginning and 507.4 MB in the end (delta: -328.7 MB). Peak memory consumption was 529.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:23,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.97 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 98.1 MB in the beginning and 168.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.08 ms. Allocated memory is still 201.9 MB. Free memory was 168.7 MB in the beginning and 163.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1519.53 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 163.6 MB in the beginning and 178.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24174.32 ms. Allocated memory was 230.2 MB in the beginning and 636.5 MB in the end (delta: 406.3 MB). Free memory was 178.7 MB in the beginning and 507.4 MB in the end (delta: -328.7 MB). Peak memory consumption was 529.2 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)) || (((((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)) || !(\old(a11) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || ((((a17 <= \old(a17) && a11 <= 0) && a28 <= \old(a28)) && a19 == \old(a19)) && a25 == \old(a25))) || (((((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: 20.2s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1182 SDtfs, 4733 SDslu, 645 SDs, 0 SdLazy, 8821 SolverSat, 1220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3285 GetRequests, 3217 SyntacticMatches, 10 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4979occurred 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: 1.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 2228 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 225 PreInvPairs, 275 NumberOfFragments, 1112 HoareAnnotationTreeSize, 225 FomulaSimplifications, 5426 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4010 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1993 NumberOfCodeBlocks, 1993 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 3243 ConstructedInterpolants, 0 QuantifiedInterpolants, 1045319 SizeOfPredicates, 16 NumberOfNonLiveVariables, 5357 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 1868/1974 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...