/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:00:19,241 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 22:00:19,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:00:19,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:00:19,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:00:19,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:00:19,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:00:19,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:00:19,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:00:19,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:00:19,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:00:19,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:00:19,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:00:19,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:00:19,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:00:19,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:00:19,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:00:19,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:00:19,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 22:00:19,327 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:00:19,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:00:19,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:00:19,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:00:19,329 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:00:19,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:00:19,330 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:00:19,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:00:19,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:00:19,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:00:19,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:00:19,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:00:19,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:00:19,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:00:19,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:00:19,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:00:19,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:00:19,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:00:19,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:00:19,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:00:19,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:00:19,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:00:19,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:00:19,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:00:19,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:00:19,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:00:19,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:19,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:00:19,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:00:19,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:00:19,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:00:19,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:00:19,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:00:19,675 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:00:19,676 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:00:19,677 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-20 22:00:19,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adfb23c1c/fa8d4e7bace845c0b7ef85dad7f303e4/FLAG2d0f647d9 [2020-07-20 22:00:20,388 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:00:20,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-20 22:00:20,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adfb23c1c/fa8d4e7bace845c0b7ef85dad7f303e4/FLAG2d0f647d9 [2020-07-20 22:00:20,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adfb23c1c/fa8d4e7bace845c0b7ef85dad7f303e4 [2020-07-20 22:00:20,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:00:20,613 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:00:20,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:00:20,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:00:20,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:00:20,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:00:20" (1/1) ... [2020-07-20 22:00:20,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b46a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:20, skipping insertion in model container [2020-07-20 22:00:20,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:00:20" (1/1) ... [2020-07-20 22:00:20,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:00:20,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:00:21,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:00:21,153 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:00:21,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:00:21,425 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:00:21,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21 WrapperNode [2020-07-20 22:00:21,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:00:21,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:00:21,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:00:21,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:00:21,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... [2020-07-20 22:00:21,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:00:21,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:00:21,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:00:21,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:00:21,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:00:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:00:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:00:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:00:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:00:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:00:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:00:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:00:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:00:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:00:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:00:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:00:23,201 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:00:23,201 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:00:23,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:00:23 BoogieIcfgContainer [2020-07-20 22:00:23,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:00:23,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:00:23,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:00:23,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:00:23,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:00:20" (1/3) ... [2020-07-20 22:00:23,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5823faf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:00:23, skipping insertion in model container [2020-07-20 22:00:23,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:21" (2/3) ... [2020-07-20 22:00:23,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5823faf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:00:23, skipping insertion in model container [2020-07-20 22:00:23,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:00:23" (3/3) ... [2020-07-20 22:00:23,223 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2020-07-20 22:00:23,238 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:00:23,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:00:23,271 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:00:23,310 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:00:23,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:00:23,311 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:00:23,311 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:00:23,311 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:00:23,311 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:00:23,311 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:00:23,311 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:00:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 22:00:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-20 22:00:23,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:23,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:23,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:23,369 INFO L82 PathProgramCache]: Analyzing trace with hash -940773154, now seen corresponding path program 1 times [2020-07-20 22:00:23,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:23,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960119468] [2020-07-20 22:00:23,384 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:23,645 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:23,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:23,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:00:23,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:23,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:23,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960119468] [2020-07-20 22:00:23,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:23,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:23,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245831255] [2020-07-20 22:00:23,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:23,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:23,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:23,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:23,876 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 22:00:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:25,143 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 22:00:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:25,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-20 22:00:25,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:25,171 INFO L225 Difference]: With dead ends: 572 [2020-07-20 22:00:25,171 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 22:00:25,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 22:00:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 22:00:25,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 22:00:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 22:00:25,274 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 92 [2020-07-20 22:00:25,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:25,275 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 22:00:25,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 22:00:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-20 22:00:25,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:25,282 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:25,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:25,497 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:25,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:25,498 INFO L82 PathProgramCache]: Analyzing trace with hash -999601675, now seen corresponding path program 1 times [2020-07-20 22:00:25,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:25,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349886068] [2020-07-20 22:00:25,499 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:25,629 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:25,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:25,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:25,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:25,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:25,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349886068] [2020-07-20 22:00:25,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:25,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:25,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341093603] [2020-07-20 22:00:25,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:25,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:25,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:25,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:25,689 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-20 22:00:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:26,450 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-20 22:00:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:26,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-20 22:00:26,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:26,459 INFO L225 Difference]: With dead ends: 820 [2020-07-20 22:00:26,459 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 22:00:26,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 22:00:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-20 22:00:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-20 22:00:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-20 22:00:26,504 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 102 [2020-07-20 22:00:26,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:26,505 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-20 22:00:26,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:26,506 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-20 22:00:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-20 22:00:26,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:26,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:26,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:26,726 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:26,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1242400687, now seen corresponding path program 1 times [2020-07-20 22:00:26,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:26,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272874560] [2020-07-20 22:00:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:26,849 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:26,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:26,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:26,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:26,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:26,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272874560] [2020-07-20 22:00:26,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:26,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:26,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683984139] [2020-07-20 22:00:26,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:26,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:26,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:26,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:26,915 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-20 22:00:27,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:27,754 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-20 22:00:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:27,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-07-20 22:00:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:27,765 INFO L225 Difference]: With dead ends: 1360 [2020-07-20 22:00:27,765 INFO L226 Difference]: Without dead ends: 818 [2020-07-20 22:00:27,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-20 22:00:27,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-20 22:00:27,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 22:00:27,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-20 22:00:27,825 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 107 [2020-07-20 22:00:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:27,826 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-20 22:00:27,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-20 22:00:27,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-20 22:00:27,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:27,836 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:28,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:28,058 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:28,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash -2037525696, now seen corresponding path program 1 times [2020-07-20 22:00:28,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:28,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758145252] [2020-07-20 22:00:28,061 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:28,177 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:28,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:28,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:28,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:28,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:28,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758145252] [2020-07-20 22:00:28,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:28,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 22:00:28,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844830454] [2020-07-20 22:00:28,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 22:00:28,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:28,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 22:00:28,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:00:28,395 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-20 22:00:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:30,872 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-20 22:00:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 22:00:30,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-07-20 22:00:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:30,894 INFO L225 Difference]: With dead ends: 3084 [2020-07-20 22:00:30,894 INFO L226 Difference]: Without dead ends: 2272 [2020-07-20 22:00:30,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 22:00:30,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-20 22:00:31,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-20 22:00:31,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-20 22:00:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2573 transitions. [2020-07-20 22:00:31,011 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2573 transitions. Word has length 118 [2020-07-20 22:00:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:31,011 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2573 transitions. [2020-07-20 22:00:31,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 22:00:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2573 transitions. [2020-07-20 22:00:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 22:00:31,019 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:31,019 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:31,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:31,233 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:31,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:31,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1595348466, now seen corresponding path program 1 times [2020-07-20 22:00:31,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:31,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472499418] [2020-07-20 22:00:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:31,345 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:31,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:31,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:31,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 22:00:31,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:31,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472499418] [2020-07-20 22:00:31,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:31,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:31,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472471650] [2020-07-20 22:00:31,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:31,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:31,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:31,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:31,395 INFO L87 Difference]: Start difference. First operand 2065 states and 2573 transitions. Second operand 3 states. [2020-07-20 22:00:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:32,013 INFO L93 Difference]: Finished difference Result 5617 states and 7128 transitions. [2020-07-20 22:00:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:32,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-20 22:00:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:32,040 INFO L225 Difference]: With dead ends: 5617 [2020-07-20 22:00:32,041 INFO L226 Difference]: Without dead ends: 3562 [2020-07-20 22:00:32,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-20 22:00:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-20 22:00:32,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-20 22:00:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-20 22:00:32,165 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 127 [2020-07-20 22:00:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:32,167 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-20 22:00:32,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-20 22:00:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 22:00:32,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:32,188 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:32,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:32,402 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:32,403 INFO L82 PathProgramCache]: Analyzing trace with hash -542065553, now seen corresponding path program 1 times [2020-07-20 22:00:32,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:32,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762173862] [2020-07-20 22:00:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:32,551 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:32,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:32,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:32,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 22:00:32,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:32,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762173862] [2020-07-20 22:00:32,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:32,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:32,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846577149] [2020-07-20 22:00:32,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:32,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:32,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:32,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:32,596 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-20 22:00:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:33,255 INFO L93 Difference]: Finished difference Result 6578 states and 8490 transitions. [2020-07-20 22:00:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:33,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-20 22:00:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:33,278 INFO L225 Difference]: With dead ends: 6578 [2020-07-20 22:00:33,278 INFO L226 Difference]: Without dead ends: 3836 [2020-07-20 22:00:33,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-07-20 22:00:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3159. [2020-07-20 22:00:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-20 22:00:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4093 transitions. [2020-07-20 22:00:33,412 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4093 transitions. Word has length 143 [2020-07-20 22:00:33,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:33,412 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 4093 transitions. [2020-07-20 22:00:33,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4093 transitions. [2020-07-20 22:00:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-20 22:00:33,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:33,422 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:33,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:33,638 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1459911568, now seen corresponding path program 1 times [2020-07-20 22:00:33,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:33,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386552812] [2020-07-20 22:00:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:33,779 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:33,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:33,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:33,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-20 22:00:33,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-20 22:00:33,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386552812] [2020-07-20 22:00:33,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:33,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:00:33,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71465553] [2020-07-20 22:00:33,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:00:33,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:33,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:00:33,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:00:33,925 INFO L87 Difference]: Start difference. First operand 3159 states and 4093 transitions. Second operand 6 states. [2020-07-20 22:00:34,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:34,877 INFO L93 Difference]: Finished difference Result 6890 states and 8926 transitions. [2020-07-20 22:00:34,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:00:34,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-07-20 22:00:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:34,902 INFO L225 Difference]: With dead ends: 6890 [2020-07-20 22:00:34,902 INFO L226 Difference]: Without dead ends: 3741 [2020-07-20 22:00:34,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:00:34,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2020-07-20 22:00:35,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3052. [2020-07-20 22:00:35,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2020-07-20 22:00:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3857 transitions. [2020-07-20 22:00:35,029 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3857 transitions. Word has length 171 [2020-07-20 22:00:35,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:35,029 INFO L479 AbstractCegarLoop]: Abstraction has 3052 states and 3857 transitions. [2020-07-20 22:00:35,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:00:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3857 transitions. [2020-07-20 22:00:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 22:00:35,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:35,042 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:35,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:35,256 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1887261731, now seen corresponding path program 1 times [2020-07-20 22:00:35,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:35,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826125177] [2020-07-20 22:00:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:35,418 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:35,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:35,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:35,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 22:00:35,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 22:00:35,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826125177] [2020-07-20 22:00:35,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:35,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:00:35,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107583267] [2020-07-20 22:00:35,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:00:35,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:35,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:00:35,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:00:35,620 INFO L87 Difference]: Start difference. First operand 3052 states and 3857 transitions. Second operand 6 states. [2020-07-20 22:00:36,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:36,786 INFO L93 Difference]: Finished difference Result 8800 states and 12119 transitions. [2020-07-20 22:00:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:00:36,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2020-07-20 22:00:36,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:36,829 INFO L225 Difference]: With dead ends: 8800 [2020-07-20 22:00:36,830 INFO L226 Difference]: Without dead ends: 5758 [2020-07-20 22:00:36,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:00:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2020-07-20 22:00:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5002. [2020-07-20 22:00:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5002 states. [2020-07-20 22:00:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6373 transitions. [2020-07-20 22:00:37,042 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6373 transitions. Word has length 179 [2020-07-20 22:00:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:37,043 INFO L479 AbstractCegarLoop]: Abstraction has 5002 states and 6373 transitions. [2020-07-20 22:00:37,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:00:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6373 transitions. [2020-07-20 22:00:37,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 22:00:37,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:37,167 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:37,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:37,368 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:37,369 INFO L82 PathProgramCache]: Analyzing trace with hash 310159644, now seen corresponding path program 1 times [2020-07-20 22:00:37,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:37,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641082946] [2020-07-20 22:00:37,370 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:37,514 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:37,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:37,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:37,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-20 22:00:37,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:37,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641082946] [2020-07-20 22:00:37,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:37,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:37,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638756809] [2020-07-20 22:00:37,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:37,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:37,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:37,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:37,564 INFO L87 Difference]: Start difference. First operand 5002 states and 6373 transitions. Second operand 3 states. [2020-07-20 22:00:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:38,131 INFO L93 Difference]: Finished difference Result 8640 states and 11005 transitions. [2020-07-20 22:00:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:38,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-20 22:00:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:38,132 INFO L225 Difference]: With dead ends: 8640 [2020-07-20 22:00:38,133 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:00:38,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:00:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:00:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:00:38,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:00:38,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-07-20 22:00:38,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:38,151 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:00:38,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:38,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:00:38,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:00:38,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:38,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:00:38,871 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-20 22:00:39,077 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-20 22:00:40,256 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-07-20 22:00:40,554 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-20 22:00:40,825 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-20 22:00:40,830 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:00:40,830 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-20 22:00:40,830 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,831 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,832 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,832 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 22:00:40,832 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 22:00:40,832 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 22:00:40,832 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 22:00:40,833 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 22:00:40,833 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 22:00:40,833 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 22:00:40,833 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 22:00:40,833 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,834 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 22:00:40,835 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 434) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,836 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,837 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 22:00:40,838 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 22:00:40,839 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 22:00:40,840 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 22:00:40,841 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 22:00:40,842 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 22:00:40,843 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 22:00:40,844 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (<= ~a21~0 0)) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse9 (<= ~a7~0 0)) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse1 (<= ~a20~0 |old(~a20~0)|)) (.cse3 (<= ~a16~0 5)) (.cse8 (<= |old(~a16~0)| ~a16~0)) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse10 (<= ~a8~0 13)) (.cse12 (<= ~a17~0 0)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse13 (not (<= |old(~a17~0)| 0))) (.cse11 (not (<= 15 |old(~a8~0)|))) (.cse14 (not (<= |old(~a16~0)| 4))) (.cse15 (<= ~a16~0 4))) (and (or (and .cse0 .cse1 .cse2 .cse3 (<= 5 ~a16~0)) .cse4 .cse5 .cse6 (not (<= 5 |old(~a16~0)|))) (or (and (or .cse7 .cse5) (or .cse7 .cse6)) (and .cse0 .cse1 .cse8 .cse9 .cse3) (and .cse0 .cse10 .cse1 .cse8 .cse9)) (or .cse11 .cse12 .cse13) (or .cse2 (and (or .cse4 .cse6 .cse13) (or .cse4 .cse6 .cse14))) (or .cse11 .cse5 .cse3) (or .cse11 .cse9 .cse7) (or .cse11 (and .cse0 .cse1 .cse8 (<= 15 ~a8~0))) (or (and .cse1 (or (and .cse0 .cse8 .cse12 .cse3) (and .cse8 (or (and .cse0 .cse10 .cse15) (and .cse0 .cse10 .cse12))))) (and (or .cse5 .cse13) (or .cse6 .cse14) (or .cse6 .cse13))) (or .cse11 .cse14 .cse15))) [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,845 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 22:00:40,846 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 22:00:40,847 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,848 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 22:00:40,849 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-20 22:00:40,850 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 22:00:40,850 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 22:00:40,851 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-20 22:00:40,851 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:00:40,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:00:40 BoogieIcfgContainer [2020-07-20 22:00:40,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:00:40,874 INFO L168 Benchmark]: Toolchain (without parser) took 20263.45 ms. Allocated memory was 144.2 MB in the beginning and 486.5 MB in the end (delta: 342.4 MB). Free memory was 100.9 MB in the beginning and 123.6 MB in the end (delta: -22.7 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:00:40,875 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:00:40,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.92 ms. Allocated memory was 144.2 MB in the beginning and 205.0 MB in the end (delta: 60.8 MB). Free memory was 100.5 MB in the beginning and 171.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:00:40,876 INFO L168 Benchmark]: Boogie Preprocessor took 107.00 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:00:40,877 INFO L168 Benchmark]: RCFGBuilder took 1675.92 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 166.3 MB in the beginning and 182.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:00:40,878 INFO L168 Benchmark]: TraceAbstraction took 17660.72 ms. Allocated memory was 235.9 MB in the beginning and 486.5 MB in the end (delta: 250.6 MB). Free memory was 180.9 MB in the beginning and 123.6 MB in the end (delta: 57.3 MB). Peak memory consumption was 308.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:00:40,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 809.92 ms. Allocated memory was 144.2 MB in the beginning and 205.0 MB in the end (delta: 60.8 MB). Free memory was 100.5 MB in the beginning and 171.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.00 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1675.92 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 166.3 MB in the beginning and 182.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17660.72 ms. Allocated memory was 235.9 MB in the beginning and 486.5 MB in the end (delta: 250.6 MB). Free memory was 180.9 MB in the beginning and 123.6 MB in the end (delta: 57.3 MB). Peak memory consumption was 308.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 434]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((a17 <= 0 && a16 <= 5) || !(15 <= \old(a8))) || (a8 <= 13 && a16 <= 4)) || ((a8 <= 13 && a21 <= 0) && a16 <= 5)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || (a8 <= 13 && a17 <= 0)) || !(5 <= \old(a16))) || (a8 <= 13 && a7 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.0s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 850 SDtfs, 1838 SDslu, 268 SDs, 0 SdLazy, 5776 SolverSat, 823 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1699 GetRequests, 1665 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5002occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 3139 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 236 NumberOfFragments, 445 HoareAnnotationTreeSize, 162 FomulaSimplifications, 11718 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3328 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1676 ConstructedInterpolants, 0 QuantifiedInterpolants, 481038 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3918 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 941/967 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...