/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:12:07,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:12:07,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:12:07,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:12:07,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:12:07,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:12:07,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:12:07,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:12:07,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:12:07,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:12:07,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:12:07,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:12:07,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:12:07,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:12:07,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:12:07,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:12:07,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:12:07,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:12:07,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:12:07,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:12:07,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:12:07,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:12:07,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:12:07,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:12:07,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:12:07,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:12:07,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:12:07,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:12:07,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:12:07,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:12:07,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:12:07,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:12:07,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:12:07,379 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:12:07,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:12:07,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:12:07,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:12:07,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:12:07,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:12:07,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:12:07,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:12:07,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:12:07,380 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:12:07,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:12:07,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:12:07,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:12:07,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:12:07,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:12:07,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:12:07,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:12:07,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:12:07,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:12:07,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:12:07,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:12:07,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:12:07,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:07,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:12:07,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:12:07,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:12:07,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:12:07,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:12:07,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:12:07,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:12:07,680 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:12:07,681 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-21 20:12:07,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adca4f748/4c9d1ca5250a43888e8b6c1a1d7bdda1/FLAG7b9215749 [2020-07-21 20:12:08,360 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:12:08,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-21 20:12:08,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adca4f748/4c9d1ca5250a43888e8b6c1a1d7bdda1/FLAG7b9215749 [2020-07-21 20:12:08,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adca4f748/4c9d1ca5250a43888e8b6c1a1d7bdda1 [2020-07-21 20:12:08,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:12:08,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:12:08,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:12:08,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:12:08,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:12:08,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:08" (1/1) ... [2020-07-21 20:12:08,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d87159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:08, skipping insertion in model container [2020-07-21 20:12:08,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:08" (1/1) ... [2020-07-21 20:12:08,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:12:08,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:12:09,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:12:09,174 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:12:09,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:12:09,404 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:12:09,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09 WrapperNode [2020-07-21 20:12:09,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:12:09,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:12:09,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:12:09,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:12:09,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... [2020-07-21 20:12:09,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:12:09,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:12:09,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:12:09,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:12:09,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:12:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:12:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:12:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:12:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:12:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:12:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:12:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:12:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:12:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:12:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:12:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:12:10,940 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:12:10,940 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:12:10,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:10 BoogieIcfgContainer [2020-07-21 20:12:10,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:12:10,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:12:10,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:12:10,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:12:10,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:12:08" (1/3) ... [2020-07-21 20:12:10,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64960a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:10, skipping insertion in model container [2020-07-21 20:12:10,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:09" (2/3) ... [2020-07-21 20:12:10,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64960a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:10, skipping insertion in model container [2020-07-21 20:12:10,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:10" (3/3) ... [2020-07-21 20:12:10,962 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2020-07-21 20:12:10,974 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:12:10,987 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:12:11,001 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:12:11,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:12:11,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:12:11,038 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:12:11,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:12:11,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:12:11,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:12:11,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:12:11,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:12:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 20:12:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-21 20:12:11,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:11,070 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] [2020-07-21 20:12:11,071 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:11,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1093393358, now seen corresponding path program 1 times [2020-07-21 20:12:11,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:11,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321640666] [2020-07-21 20:12:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:11,200 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:11,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:11,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:12:11,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:11,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:11,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321640666] [2020-07-21 20:12:11,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:11,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:11,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185357250] [2020-07-21 20:12:11,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:11,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:11,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:11,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:11,305 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 20:12:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:12,277 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 20:12:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:12,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-21 20:12:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:12,313 INFO L225 Difference]: With dead ends: 571 [2020-07-21 20:12:12,314 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 20:12:12,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 20:12:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 20:12:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 20:12:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 20:12:12,446 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 45 [2020-07-21 20:12:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:12,447 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 20:12:12,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 20:12:12,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 20:12:12,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:12,457 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:12:12,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:12,660 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:12,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:12,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1074039414, now seen corresponding path program 1 times [2020-07-21 20:12:12,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:12,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313466509] [2020-07-21 20:12:12,662 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:12,751 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:12,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:12,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:12,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:12,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:12,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313466509] [2020-07-21 20:12:12,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:12,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:12,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792957653] [2020-07-21 20:12:12,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:12,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:12,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:12,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:12,797 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-21 20:12:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:13,530 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-21 20:12:13,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:13,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-21 20:12:13,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:13,536 INFO L225 Difference]: With dead ends: 725 [2020-07-21 20:12:13,537 INFO L226 Difference]: Without dead ends: 437 [2020-07-21 20:12:13,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:13,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-21 20:12:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-21 20:12:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 20:12:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 593 transitions. [2020-07-21 20:12:13,574 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 593 transitions. Word has length 115 [2020-07-21 20:12:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:13,575 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 593 transitions. [2020-07-21 20:12:13,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 593 transitions. [2020-07-21 20:12:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 20:12:13,578 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:13,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:12:13,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:13,792 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:13,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:13,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1870718803, now seen corresponding path program 1 times [2020-07-21 20:12:13,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:13,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375984949] [2020-07-21 20:12:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:13,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:13,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:13,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:13,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:13,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:13,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375984949] [2020-07-21 20:12:13,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:13,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:13,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794816021] [2020-07-21 20:12:13,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:13,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:13,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:13,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:13,929 INFO L87 Difference]: Start difference. First operand 437 states and 593 transitions. Second operand 3 states. [2020-07-21 20:12:14,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:14,619 INFO L93 Difference]: Finished difference Result 1011 states and 1407 transitions. [2020-07-21 20:12:14,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:14,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-21 20:12:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:14,629 INFO L225 Difference]: With dead ends: 1011 [2020-07-21 20:12:14,629 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 20:12:14,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 20:12:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 20:12:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 20:12:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 807 transitions. [2020-07-21 20:12:14,686 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 807 transitions. Word has length 122 [2020-07-21 20:12:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:14,687 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 807 transitions. [2020-07-21 20:12:14,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 807 transitions. [2020-07-21 20:12:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 20:12:14,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:14,691 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:12:14,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:14,907 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:14,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1404562463, now seen corresponding path program 1 times [2020-07-21 20:12:14,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:14,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672627316] [2020-07-21 20:12:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:15,009 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:15,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:15,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:15,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:15,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:15,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672627316] [2020-07-21 20:12:15,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:15,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:15,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080703218] [2020-07-21 20:12:15,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:15,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:15,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:15,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:15,087 INFO L87 Difference]: Start difference. First operand 580 states and 807 transitions. Second operand 3 states. [2020-07-21 20:12:15,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:15,803 INFO L93 Difference]: Finished difference Result 1154 states and 1634 transitions. [2020-07-21 20:12:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:15,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 20:12:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:15,811 INFO L225 Difference]: With dead ends: 1154 [2020-07-21 20:12:15,811 INFO L226 Difference]: Without dead ends: 1152 [2020-07-21 20:12:15,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:15,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-21 20:12:15,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 866. [2020-07-21 20:12:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-21 20:12:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1248 transitions. [2020-07-21 20:12:15,843 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1248 transitions. Word has length 132 [2020-07-21 20:12:15,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:15,843 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1248 transitions. [2020-07-21 20:12:15,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1248 transitions. [2020-07-21 20:12:15,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-21 20:12:15,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:15,848 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:12:16,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:16,056 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:16,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1402576581, now seen corresponding path program 1 times [2020-07-21 20:12:16,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:16,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121722398] [2020-07-21 20:12:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:16,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:16,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:16,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:16,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-21 20:12:16,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:16,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121722398] [2020-07-21 20:12:16,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:16,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:16,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849667714] [2020-07-21 20:12:16,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:16,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:16,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:16,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:16,259 INFO L87 Difference]: Start difference. First operand 866 states and 1248 transitions. Second operand 3 states. [2020-07-21 20:12:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:17,071 INFO L93 Difference]: Finished difference Result 2441 states and 3576 transitions. [2020-07-21 20:12:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:17,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-07-21 20:12:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:17,083 INFO L225 Difference]: With dead ends: 2441 [2020-07-21 20:12:17,083 INFO L226 Difference]: Without dead ends: 1581 [2020-07-21 20:12:17,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2020-07-21 20:12:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2020-07-21 20:12:17,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-07-21 20:12:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2156 transitions. [2020-07-21 20:12:17,147 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2156 transitions. Word has length 222 [2020-07-21 20:12:17,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:17,148 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 2156 transitions. [2020-07-21 20:12:17,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2156 transitions. [2020-07-21 20:12:17,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 20:12:17,157 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:17,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:12:17,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:17,373 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:17,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1725044783, now seen corresponding path program 1 times [2020-07-21 20:12:17,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:17,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848400525] [2020-07-21 20:12:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:17,487 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:17,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:17,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:17,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:17,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:12:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:17,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848400525] [2020-07-21 20:12:17,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:12:17,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:12:17,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572440181] [2020-07-21 20:12:17,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:12:17,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:17,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:12:17,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:12:17,757 INFO L87 Difference]: Start difference. First operand 1581 states and 2156 transitions. Second operand 6 states. [2020-07-21 20:12:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:19,006 INFO L93 Difference]: Finished difference Result 3500 states and 4849 transitions. [2020-07-21 20:12:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:12:19,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2020-07-21 20:12:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:19,018 INFO L225 Difference]: With dead ends: 3500 [2020-07-21 20:12:19,018 INFO L226 Difference]: Without dead ends: 1925 [2020-07-21 20:12:19,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 476 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:12:19,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-21 20:12:19,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1762. [2020-07-21 20:12:19,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-21 20:12:19,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2091 transitions. [2020-07-21 20:12:19,115 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2091 transitions. Word has length 240 [2020-07-21 20:12:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:19,116 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2091 transitions. [2020-07-21 20:12:19,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:12:19,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2091 transitions. [2020-07-21 20:12:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-21 20:12:19,122 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:19,123 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:12:19,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:19,339 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:19,339 INFO L82 PathProgramCache]: Analyzing trace with hash -335118642, now seen corresponding path program 1 times [2020-07-21 20:12:19,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:19,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314801969] [2020-07-21 20:12:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:19,468 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:19,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:19,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:19,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:19,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:12:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:19,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314801969] [2020-07-21 20:12:19,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:12:19,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:12:19,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387120281] [2020-07-21 20:12:19,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:12:19,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:12:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:12:19,727 INFO L87 Difference]: Start difference. First operand 1762 states and 2091 transitions. Second operand 7 states. [2020-07-21 20:12:21,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:21,239 INFO L93 Difference]: Finished difference Result 5058 states and 6269 transitions. [2020-07-21 20:12:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 20:12:21,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-07-21 20:12:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:21,252 INFO L225 Difference]: With dead ends: 5058 [2020-07-21 20:12:21,253 INFO L226 Difference]: Without dead ends: 2104 [2020-07-21 20:12:21,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:12:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-21 20:12:21,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2060. [2020-07-21 20:12:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-07-21 20:12:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2357 transitions. [2020-07-21 20:12:21,337 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2357 transitions. Word has length 251 [2020-07-21 20:12:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:21,338 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2357 transitions. [2020-07-21 20:12:21,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:12:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2357 transitions. [2020-07-21 20:12:21,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-07-21 20:12:21,346 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:21,347 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:12:21,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:21,560 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash 2108247554, now seen corresponding path program 1 times [2020-07-21 20:12:21,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:21,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81249792] [2020-07-21 20:12:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:21,721 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:21,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:21,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:21,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 20:12:21,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:21,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81249792] [2020-07-21 20:12:21,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:21,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:21,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145303598] [2020-07-21 20:12:21,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:21,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:21,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:21,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:21,839 INFO L87 Difference]: Start difference. First operand 2060 states and 2357 transitions. Second operand 3 states. [2020-07-21 20:12:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:22,388 INFO L93 Difference]: Finished difference Result 2207 states and 2504 transitions. [2020-07-21 20:12:22,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:22,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-07-21 20:12:22,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:22,401 INFO L225 Difference]: With dead ends: 2207 [2020-07-21 20:12:22,401 INFO L226 Difference]: Without dead ends: 2058 [2020-07-21 20:12:22,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-07-21 20:12:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2058. [2020-07-21 20:12:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2058 states. [2020-07-21 20:12:22,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2345 transitions. [2020-07-21 20:12:22,493 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2345 transitions. Word has length 301 [2020-07-21 20:12:22,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:22,494 INFO L479 AbstractCegarLoop]: Abstraction has 2058 states and 2345 transitions. [2020-07-21 20:12:22,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:22,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2345 transitions. [2020-07-21 20:12:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-07-21 20:12:22,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:22,506 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:12:22,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:22,720 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:22,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1499776183, now seen corresponding path program 1 times [2020-07-21 20:12:22,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:22,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980140262] [2020-07-21 20:12:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:22,880 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:22,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:22,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:22,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 20:12:22,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:22,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980140262] [2020-07-21 20:12:22,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:22,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:22,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574145223] [2020-07-21 20:12:22,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:22,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:22,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:22,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:22,986 INFO L87 Difference]: Start difference. First operand 2058 states and 2345 transitions. Second operand 3 states. [2020-07-21 20:12:23,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:23,638 INFO L93 Difference]: Finished difference Result 2058 states and 2345 transitions. [2020-07-21 20:12:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:23,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2020-07-21 20:12:23,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:23,644 INFO L225 Difference]: With dead ends: 2058 [2020-07-21 20:12:23,644 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:12:23,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:12:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:12:23,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:12:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:12:23,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-07-21 20:12:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:23,655 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:12:23,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:12:23,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:12:23,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:23,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:12:24,908 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 59 [2020-07-21 20:12:25,049 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-21 20:12:25,176 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-21 20:12:25,180 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:12:25,181 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 20:12:25,181 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:12:25,181 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 20:12:25,181 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,181 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,181 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:12:25,182 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,183 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:12:25,184 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 20:12:25,185 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,186 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 20:12:25,187 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 20:12:25,188 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 20:12:25,189 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,190 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 20:12:25,191 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 20:12:25,192 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 20:12:25,193 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:12:25,194 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:12:25,195 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,196 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 20:12:25,197 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 20:12:25,198 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse10 (<= |old(~a10~0)| ~a10~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse2 (not (< 218 |old(~a1~0)|))) (.cse6 (< 218 ~a1~0)) (.cse7 (and (<= 8 ~a19~0) .cse10 .cse11)) (.cse8 (not (<= 8 |old(~a19~0)|))) (.cse0 (not (< |old(~a19~0)| 10))) (.cse5 (not (<= 2 |old(~a10~0)|))) (.cse9 (not (<= |old(~a10~0)| 2))) (.cse1 (not (<= |old(~a10~0)| 3))) (.cse3 (not (<= |old(~a19~0)| 8))) (.cse4 (and .cse10 .cse11))) (and (or .cse0 .cse1 (<= ~a10~0 3)) (or .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse0 .cse6 .cse5) (or .cse7 .cse3 .cse8) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse2 .cse6 .cse9) (or .cse7 .cse8 .cse9) (or .cse0 (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse10 (< ~a19~0 10)) .cse5) (or (not (<= |old(~a19~0)| 6)) .cse4) (or (<= ~a10~0 2) .cse9) (or .cse1 .cse3 .cse4)))) [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,199 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:12:25,200 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,201 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:12:25,202 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,203 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:12:25,204 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (< ~a19~0 10)) [2020-07-21 20:12:25,205 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:12:25,205 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (< ~a19~0 10))) [2020-07-21 20:12:25,205 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:12:25,206 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-21 20:12:25,206 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 20:12:25,206 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 20:12:25,206 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-21 20:12:25,206 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:12:25,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:12:25 BoogieIcfgContainer [2020-07-21 20:12:25,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:12:25,228 INFO L168 Benchmark]: Toolchain (without parser) took 16585.32 ms. Allocated memory was 137.9 MB in the beginning and 490.2 MB in the end (delta: 352.3 MB). Free memory was 101.3 MB in the beginning and 220.8 MB in the end (delta: -119.4 MB). Peak memory consumption was 232.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:12:25,229 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:12:25,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.29 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.9 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:12:25,230 INFO L168 Benchmark]: Boogie Preprocessor took 111.27 ms. Allocated memory is still 205.0 MB. Free memory was 171.9 MB in the beginning and 167.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:12:25,231 INFO L168 Benchmark]: RCFGBuilder took 1434.80 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 167.0 MB in the beginning and 183.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:12:25,232 INFO L168 Benchmark]: TraceAbstraction took 14273.44 ms. Allocated memory was 237.5 MB in the beginning and 490.2 MB in the end (delta: 252.7 MB). Free memory was 181.6 MB in the beginning and 220.8 MB in the end (delta: -39.1 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:12:25,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.29 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.9 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.27 ms. Allocated memory is still 205.0 MB. Free memory was 171.9 MB in the beginning and 167.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1434.80 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 167.0 MB in the beginning and 183.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14273.44 ms. Allocated memory was 237.5 MB in the beginning and 490.2 MB in the end (delta: 252.7 MB). Free memory was 181.6 MB in the beginning and 220.8 MB in the end (delta: -39.1 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 582]: Loop Invariant Derived loop invariant: ((((((!(\old(a19) < 10) || a19 <= 6) || !(\old(a10) <= 0)) || (a19 <= 8 && 218 < a1)) || !(9 <= \old(a19))) || a10 <= 2) || (8 <= a19 && a19 < 10)) || (a19 <= 8 && a10 <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 713 SDtfs, 1626 SDslu, 157 SDs, 0 SdLazy, 4446 SolverSat, 884 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2293 GetRequests, 2265 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2060occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 493 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 134 NumberOfFragments, 290 HoareAnnotationTreeSize, 72 FomulaSimplifications, 3102 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2039 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1798 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2278 ConstructedInterpolants, 0 QuantifiedInterpolants, 1152842 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3220 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1461/1469 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...