/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:08:54,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:08:54,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:08:54,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:08:54,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:08:54,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:08:54,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:08:54,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:08:54,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:08:54,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:08:54,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:08:54,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:08:54,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:08:54,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:08:54,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:08:54,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:08:54,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:08:54,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:08:54,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:08:54,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:08:54,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:08:54,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:08:54,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:08:54,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:08:54,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:08:54,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:08:54,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:08:54,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:08:54,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:08:54,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:08:54,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:08:54,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:08:54,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:08:54,460 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:08:54,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:08:54,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:08:54,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:08:54,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:08:54,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:08:54,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:08:54,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:08:54,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:08:54,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:08:54,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:08:54,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:08:54,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:08:54,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:08:54,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:08:54,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:08:54,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:08:54,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:08:54,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:08:54,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:08:54,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:08:54,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:08:54,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:54,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:08:54,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:08:54,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:08:54,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:08:54,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:08:54,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:08:54,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:08:54,823 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:08:54,824 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-07-20 14:08:54,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763a5d5f6/5f2bbeba9fd84f09a075f0626bb9138f/FLAGcee554b4e [2020-07-20 14:08:55,541 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:08:55,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-07-20 14:08:55,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763a5d5f6/5f2bbeba9fd84f09a075f0626bb9138f/FLAGcee554b4e [2020-07-20 14:08:55,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763a5d5f6/5f2bbeba9fd84f09a075f0626bb9138f [2020-07-20 14:08:55,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:08:55,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:08:55,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:55,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:08:55,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:08:55,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:55" (1/1) ... [2020-07-20 14:08:55,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52dce205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:55, skipping insertion in model container [2020-07-20 14:08:55,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:55" (1/1) ... [2020-07-20 14:08:55,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:08:55,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:08:56,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:56,469 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:08:56,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:56,652 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:08:56,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56 WrapperNode [2020-07-20 14:08:56,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:56,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:08:56,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:08:56,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:08:56,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... [2020-07-20 14:08:56,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:08:56,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:08:56,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:08:56,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:08:56,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:08:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:08:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:08:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:08:56,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:08:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:08:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:08:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:08:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:08:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:08:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:08:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:08:58,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:08:58,325 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:08:58,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:08:58 BoogieIcfgContainer [2020-07-20 14:08:58,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:08:58,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:08:58,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:08:58,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:08:58,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:08:55" (1/3) ... [2020-07-20 14:08:58,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77de38af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:08:58, skipping insertion in model container [2020-07-20 14:08:58,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:56" (2/3) ... [2020-07-20 14:08:58,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77de38af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:08:58, skipping insertion in model container [2020-07-20 14:08:58,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:08:58" (3/3) ... [2020-07-20 14:08:58,347 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label07.c [2020-07-20 14:08:58,358 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:08:58,369 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:08:58,383 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:08:58,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:08:58,415 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:08:58,415 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:08:58,415 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:08:58,415 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:08:58,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:08:58,416 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:08:58,416 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:08:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 14:08:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 14:08:58,447 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:58,448 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] [2020-07-20 14:08:58,449 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:58,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1452048058, now seen corresponding path program 1 times [2020-07-20 14:08:58,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:58,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094414377] [2020-07-20 14:08:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:58,594 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:58,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:58,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:08:58,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:08:58,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:58,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094414377] [2020-07-20 14:08:58,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:58,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:58,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13934789] [2020-07-20 14:08:58,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:58,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:58,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:58,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:58,741 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 14:08:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:59,816 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 14:08:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:59,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 14:08:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:59,848 INFO L225 Difference]: With dead ends: 586 [2020-07-20 14:08:59,848 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 14:08:59,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 14:08:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 14:08:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 14:08:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 14:08:59,979 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 51 [2020-07-20 14:08:59,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:59,980 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 14:08:59,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 14:08:59,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-20 14:08:59,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:59,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:09:00,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:00,199 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:00,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:00,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1838295646, now seen corresponding path program 1 times [2020-07-20 14:09:00,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:00,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106863505] [2020-07-20 14:09:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:00,288 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:00,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:00,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:00,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:00,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:00,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106863505] [2020-07-20 14:09:00,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:00,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:00,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62721710] [2020-07-20 14:09:00,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:00,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:00,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:00,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:00,334 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 14:09:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:01,028 INFO L93 Difference]: Finished difference Result 582 states and 894 transitions. [2020-07-20 14:09:01,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:01,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-20 14:09:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:01,034 INFO L225 Difference]: With dead ends: 582 [2020-07-20 14:09:01,034 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 14:09:01,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 14:09:01,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 294. [2020-07-20 14:09:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 14:09:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 14:09:01,058 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 121 [2020-07-20 14:09:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:01,059 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 14:09:01,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 14:09:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-20 14:09:01,061 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:01,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:09:01,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:01,277 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:01,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1710375939, now seen corresponding path program 1 times [2020-07-20 14:09:01,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:01,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022607223] [2020-07-20 14:09:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:01,371 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:01,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:01,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:01,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:01,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:01,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022607223] [2020-07-20 14:09:01,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:01,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:01,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491193526] [2020-07-20 14:09:01,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:01,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:01,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:01,441 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 5 states. [2020-07-20 14:09:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:02,481 INFO L93 Difference]: Finished difference Result 741 states and 1138 transitions. [2020-07-20 14:09:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:09:02,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-20 14:09:02,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:02,491 INFO L225 Difference]: With dead ends: 741 [2020-07-20 14:09:02,491 INFO L226 Difference]: Without dead ends: 453 [2020-07-20 14:09:02,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:09:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-20 14:09:02,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2020-07-20 14:09:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-20 14:09:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 624 transitions. [2020-07-20 14:09:02,540 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 624 transitions. Word has length 124 [2020-07-20 14:09:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:02,541 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 624 transitions. [2020-07-20 14:09:02,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 624 transitions. [2020-07-20 14:09:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 14:09:02,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:02,544 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:02,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:02,758 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash 869168890, now seen corresponding path program 1 times [2020-07-20 14:09:02,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:02,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974459821] [2020-07-20 14:09:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:02,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:02,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:02,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:02,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:03,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:03,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974459821] [2020-07-20 14:09:03,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:03,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:03,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850434086] [2020-07-20 14:09:03,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:03,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:03,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:03,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:03,005 INFO L87 Difference]: Start difference. First operand 443 states and 624 transitions. Second operand 5 states. [2020-07-20 14:09:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:04,103 INFO L93 Difference]: Finished difference Result 1355 states and 1987 transitions. [2020-07-20 14:09:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:09:04,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-20 14:09:04,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:04,113 INFO L225 Difference]: With dead ends: 1355 [2020-07-20 14:09:04,114 INFO L226 Difference]: Without dead ends: 918 [2020-07-20 14:09:04,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:09:04,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-07-20 14:09:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 898. [2020-07-20 14:09:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-07-20 14:09:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1245 transitions. [2020-07-20 14:09:04,161 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1245 transitions. Word has length 133 [2020-07-20 14:09:04,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:04,162 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1245 transitions. [2020-07-20 14:09:04,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1245 transitions. [2020-07-20 14:09:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 14:09:04,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:04,167 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:09:04,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:04,372 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:04,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:04,372 INFO L82 PathProgramCache]: Analyzing trace with hash -424020551, now seen corresponding path program 1 times [2020-07-20 14:09:04,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:04,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972567860] [2020-07-20 14:09:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:04,549 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:04,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:04,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:04,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:04,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:04,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972567860] [2020-07-20 14:09:04,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:04,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:04,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556631378] [2020-07-20 14:09:04,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:04,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:04,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:04,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:04,634 INFO L87 Difference]: Start difference. First operand 898 states and 1245 transitions. Second operand 3 states. [2020-07-20 14:09:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:05,347 INFO L93 Difference]: Finished difference Result 2374 states and 3313 transitions. [2020-07-20 14:09:05,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:05,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-07-20 14:09:05,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:05,368 INFO L225 Difference]: With dead ends: 2374 [2020-07-20 14:09:05,368 INFO L226 Difference]: Without dead ends: 1482 [2020-07-20 14:09:05,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:05,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2020-07-20 14:09:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1337. [2020-07-20 14:09:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-07-20 14:09:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1774 transitions. [2020-07-20 14:09:05,429 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1774 transitions. Word has length 170 [2020-07-20 14:09:05,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:05,430 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1774 transitions. [2020-07-20 14:09:05,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1774 transitions. [2020-07-20 14:09:05,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-20 14:09:05,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:05,440 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:05,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:05,645 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:05,646 INFO L82 PathProgramCache]: Analyzing trace with hash 847819014, now seen corresponding path program 1 times [2020-07-20 14:09:05,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:05,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508843668] [2020-07-20 14:09:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:05,753 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:05,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:05,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:05,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:05,860 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:05,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:05,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508843668] [2020-07-20 14:09:05,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:05,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:05,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299571524] [2020-07-20 14:09:05,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:05,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:05,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:05,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:05,863 INFO L87 Difference]: Start difference. First operand 1337 states and 1774 transitions. Second operand 5 states. [2020-07-20 14:09:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:06,964 INFO L93 Difference]: Finished difference Result 3423 states and 4716 transitions. [2020-07-20 14:09:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:06,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 187 [2020-07-20 14:09:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:06,984 INFO L225 Difference]: With dead ends: 3423 [2020-07-20 14:09:06,984 INFO L226 Difference]: Without dead ends: 2092 [2020-07-20 14:09:06,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:09:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2020-07-20 14:09:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1653. [2020-07-20 14:09:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1653 states. [2020-07-20 14:09:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2191 transitions. [2020-07-20 14:09:07,071 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2191 transitions. Word has length 187 [2020-07-20 14:09:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:07,071 INFO L479 AbstractCegarLoop]: Abstraction has 1653 states and 2191 transitions. [2020-07-20 14:09:07,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2191 transitions. [2020-07-20 14:09:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 14:09:07,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:07,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:07,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:07,291 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:07,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:07,292 INFO L82 PathProgramCache]: Analyzing trace with hash 238686173, now seen corresponding path program 1 times [2020-07-20 14:09:07,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:07,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374142516] [2020-07-20 14:09:07,293 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:07,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:07,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:07,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:07,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:07,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:07,620 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:07,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374142516] [2020-07-20 14:09:07,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:07,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:09:07,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024830802] [2020-07-20 14:09:07,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:09:07,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:07,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:09:07,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:09:07,623 INFO L87 Difference]: Start difference. First operand 1653 states and 2191 transitions. Second operand 7 states. [2020-07-20 14:09:08,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:08,998 INFO L93 Difference]: Finished difference Result 4031 states and 5404 transitions. [2020-07-20 14:09:08,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 14:09:08,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-20 14:09:09,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:09,014 INFO L225 Difference]: With dead ends: 4031 [2020-07-20 14:09:09,014 INFO L226 Difference]: Without dead ends: 2384 [2020-07-20 14:09:09,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 419 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:09:09,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2020-07-20 14:09:09,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2233. [2020-07-20 14:09:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2233 states. [2020-07-20 14:09:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2782 transitions. [2020-07-20 14:09:09,105 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2782 transitions. Word has length 212 [2020-07-20 14:09:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:09,106 INFO L479 AbstractCegarLoop]: Abstraction has 2233 states and 2782 transitions. [2020-07-20 14:09:09,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:09:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2782 transitions. [2020-07-20 14:09:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-20 14:09:09,115 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:09,115 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:09,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:09,331 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash -73062046, now seen corresponding path program 1 times [2020-07-20 14:09:09,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:09,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808037858] [2020-07-20 14:09:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:09,498 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:09,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:09,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:09,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:09,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:09,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808037858] [2020-07-20 14:09:09,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:09,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:09:09,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810613206] [2020-07-20 14:09:09,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:09:09,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:09,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:09:09,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:09,803 INFO L87 Difference]: Start difference. First operand 2233 states and 2782 transitions. Second operand 6 states. [2020-07-20 14:09:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:10,890 INFO L93 Difference]: Finished difference Result 4496 states and 5713 transitions. [2020-07-20 14:09:10,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:10,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-07-20 14:09:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:10,907 INFO L225 Difference]: With dead ends: 4496 [2020-07-20 14:09:10,908 INFO L226 Difference]: Without dead ends: 2269 [2020-07-20 14:09:10,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 510 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 14:09:10,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2020-07-20 14:09:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2235. [2020-07-20 14:09:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-07-20 14:09:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2669 transitions. [2020-07-20 14:09:11,018 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2669 transitions. Word has length 257 [2020-07-20 14:09:11,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:11,018 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2669 transitions. [2020-07-20 14:09:11,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:09:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2669 transitions. [2020-07-20 14:09:11,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-07-20 14:09:11,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:11,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:11,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:11,240 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:11,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:11,241 INFO L82 PathProgramCache]: Analyzing trace with hash -417734231, now seen corresponding path program 1 times [2020-07-20 14:09:11,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:11,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863747449] [2020-07-20 14:09:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:11,367 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:11,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:11,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:11,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:11,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:11,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863747449] [2020-07-20 14:09:11,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:11,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:09:11,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348058553] [2020-07-20 14:09:11,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:09:11,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:11,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:09:11,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:11,578 INFO L87 Difference]: Start difference. First operand 2235 states and 2669 transitions. Second operand 6 states. [2020-07-20 14:09:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:12,702 INFO L93 Difference]: Finished difference Result 5384 states and 6552 transitions. [2020-07-20 14:09:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:09:12,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 266 [2020-07-20 14:09:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:12,716 INFO L225 Difference]: With dead ends: 5384 [2020-07-20 14:09:12,717 INFO L226 Difference]: Without dead ends: 2271 [2020-07-20 14:09:12,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 528 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:09:12,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2020-07-20 14:09:12,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2082. [2020-07-20 14:09:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2020-07-20 14:09:12,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2413 transitions. [2020-07-20 14:09:12,788 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2413 transitions. Word has length 266 [2020-07-20 14:09:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:12,788 INFO L479 AbstractCegarLoop]: Abstraction has 2082 states and 2413 transitions. [2020-07-20 14:09:12,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:09:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2413 transitions. [2020-07-20 14:09:12,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-07-20 14:09:12,797 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:12,797 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:13,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:13,013 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:13,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:13,014 INFO L82 PathProgramCache]: Analyzing trace with hash 492877617, now seen corresponding path program 1 times [2020-07-20 14:09:13,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:13,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748553578] [2020-07-20 14:09:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:13,146 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:13,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:13,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:13,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:13,237 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 14:09:13,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:13,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748553578] [2020-07-20 14:09:13,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:13,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:13,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861906520] [2020-07-20 14:09:13,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:13,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:13,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:13,240 INFO L87 Difference]: Start difference. First operand 2082 states and 2413 transitions. Second operand 3 states. [2020-07-20 14:09:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:13,792 INFO L93 Difference]: Finished difference Result 2227 states and 2558 transitions. [2020-07-20 14:09:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:13,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2020-07-20 14:09:13,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:13,803 INFO L225 Difference]: With dead ends: 2227 [2020-07-20 14:09:13,803 INFO L226 Difference]: Without dead ends: 2076 [2020-07-20 14:09:13,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2020-07-20 14:09:13,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1931. [2020-07-20 14:09:13,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-07-20 14:09:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2221 transitions. [2020-07-20 14:09:13,860 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2221 transitions. Word has length 302 [2020-07-20 14:09:13,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:13,861 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2221 transitions. [2020-07-20 14:09:13,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:13,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2221 transitions. [2020-07-20 14:09:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-20 14:09:13,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:13,872 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:14,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:14,085 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:14,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:14,086 INFO L82 PathProgramCache]: Analyzing trace with hash 775353937, now seen corresponding path program 1 times [2020-07-20 14:09:14,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:14,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058897878] [2020-07-20 14:09:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:14,260 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:14,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:14,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:14,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-20 14:09:14,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-20 14:09:14,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058897878] [2020-07-20 14:09:14,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:14,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:09:14,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540623292] [2020-07-20 14:09:14,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:09:14,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:14,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:09:14,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:14,600 INFO L87 Difference]: Start difference. First operand 1931 states and 2221 transitions. Second operand 6 states. [2020-07-20 14:09:15,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:15,773 INFO L93 Difference]: Finished difference Result 4665 states and 5652 transitions. [2020-07-20 14:09:15,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 14:09:15,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 358 [2020-07-20 14:09:15,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:15,789 INFO L225 Difference]: With dead ends: 4665 [2020-07-20 14:09:15,789 INFO L226 Difference]: Without dead ends: 2740 [2020-07-20 14:09:15,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 713 SyntacticMatches, 1 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 14:09:15,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2020-07-20 14:09:15,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2515. [2020-07-20 14:09:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2515 states. [2020-07-20 14:09:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 2881 transitions. [2020-07-20 14:09:15,871 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 2881 transitions. Word has length 358 [2020-07-20 14:09:15,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:15,871 INFO L479 AbstractCegarLoop]: Abstraction has 2515 states and 2881 transitions. [2020-07-20 14:09:15,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:09:15,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 2881 transitions. [2020-07-20 14:09:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-07-20 14:09:15,881 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:15,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:16,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:16,097 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:16,098 INFO L82 PathProgramCache]: Analyzing trace with hash 549515818, now seen corresponding path program 1 times [2020-07-20 14:09:16,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:16,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062009539] [2020-07-20 14:09:16,099 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:16,305 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:16,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:16,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:16,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-20 14:09:16,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:16,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062009539] [2020-07-20 14:09:16,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:16,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:16,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888537338] [2020-07-20 14:09:16,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:16,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:16,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:16,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:16,404 INFO L87 Difference]: Start difference. First operand 2515 states and 2881 transitions. Second operand 3 states. [2020-07-20 14:09:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:16,815 INFO L93 Difference]: Finished difference Result 2515 states and 2881 transitions. [2020-07-20 14:09:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:16,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2020-07-20 14:09:16,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:16,819 INFO L225 Difference]: With dead ends: 2515 [2020-07-20 14:09:16,820 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:09:16,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:09:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:09:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:09:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:09:16,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2020-07-20 14:09:16,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:16,828 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:09:16,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:09:16,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:09:17,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:17,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:09:17,578 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 147 [2020-07-20 14:09:17,798 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 147 [2020-07-20 14:09:19,096 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 140 DAG size of output: 71 [2020-07-20 14:09:19,515 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 40 [2020-07-20 14:09:19,924 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 40 [2020-07-20 14:09:19,929 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:19,929 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 |old(~a1~0)|) (<= |old(~a10~0)| ~a10~0) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 14:09:19,929 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:19,929 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,930 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 14:09:19,931 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 14:09:19,931 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:09:19,931 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:09:19,931 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:09:19,931 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,932 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:09:19,933 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,934 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 14:09:19,935 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,936 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:09:19,937 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,938 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 14:09:19,939 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,940 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:09:19,941 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 14:09:19,942 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 14:09:19,943 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:09:19,944 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,945 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:09:19,946 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:09:19,947 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:09:19,947 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 14:09:19,947 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 14:09:19,947 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (<= 8 ~a19~0)) (.cse5 (<= |old(~a1~0)| ~a1~0)) (.cse17 (<= 9 ~a19~0)) (.cse18 (<= 23 ~a1~0)) (.cse2 (<= ~a10~0 |old(~a10~0)|)) (.cse4 (<= ~a1~0 |old(~a1~0)|)) (.cse19 (<= |old(~a10~0)| ~a10~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse11 (and .cse2 .cse4 .cse19 .cse6)) (.cse15 (not (<= 3 |old(~a10~0)|))) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse9 (not (<= |old(~a19~0)| 8))) (.cse13 (or .cse17 .cse18)) (.cse7 (<= 2 ~a10~0)) (.cse10 (not (< |old(~a10~0)| 4))) (.cse8 (not (<= 2 |old(~a10~0)|))) (.cse16 (and .cse2 .cse3 .cse4 .cse19 .cse5 .cse6)) (.cse0 (not (<= 8 |old(~a19~0)|))) (.cse14 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse12 (not (<= |old(~a10~0)| 1)))) (and (or (not (< 218 |old(~a1~0)|)) .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8) (or .cse3 .cse9 .cse0 .cse10 .cse8) (or .cse11 .cse12) (or (not (<= |old(~a1~0)| 23)) (and .cse2 .cse3 .cse4 .cse13 .cse5 .cse6 .cse7) .cse0 .cse10 .cse1 .cse14 .cse8) (or .cse9 (and .cse2 .cse4 (<= 7 ~a19~0) .cse5 .cse6 .cse7) (not (<= 7 |old(~a19~0)|)) .cse10 .cse8) (or .cse15 .cse11 .cse1) (or .cse16 .cse15 .cse0 .cse1) (or .cse9 (and .cse2 .cse4 .cse13 .cse6 .cse7) .cse10 .cse14 .cse8) (or .cse16 .cse0 .cse12) (or .cse17 .cse0 .cse18 .cse14 .cse12)))) [2020-07-20 14:09:19,947 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,948 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 14:09:19,949 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,950 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:09:19,951 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,952 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:09:19,953 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:19,954 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-20 14:09:19,955 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:09:19,955 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:19,955 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= |old(~a10~0)| ~a10~0) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-20 14:09:19,955 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:09:19,955 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a19~0 8)) (.cse2 (or (<= 9 ~a19~0) (<= 23 ~a1~0)))) (or (not (<= 23 |old(~a1~0)|)) (<= ~a10~0 1) (not (<= |old(~a1~0)| 23)) (and .cse0 (< 218 ~a1~0)) (and .cse0 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= 7 ~a19~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 .cse2 (<= ~a1~0 23)) (and .cse1 .cse2))) [2020-07-20 14:09:19,955 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 14:09:19,955 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 14:09:19,956 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a19~0 8)) (.cse2 (or (<= 9 ~a19~0) (<= 23 ~a1~0)))) (or (not (<= 23 |old(~a1~0)|)) (<= ~a10~0 1) (not (<= |old(~a1~0)| 23)) (and .cse0 (< 218 ~a1~0)) (and .cse0 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= 7 ~a19~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 .cse2 (<= ~a1~0 23)) (and .cse1 .cse2))) [2020-07-20 14:09:19,956 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:09:19,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:09:19 BoogieIcfgContainer [2020-07-20 14:09:19,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:09:19,981 INFO L168 Benchmark]: Toolchain (without parser) took 24199.64 ms. Allocated memory was 145.2 MB in the beginning and 568.3 MB in the end (delta: 423.1 MB). Free memory was 101.6 MB in the beginning and 212.9 MB in the end (delta: -111.3 MB). Peak memory consumption was 393.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:19,982 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 14:09:19,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.00 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.4 MB in the beginning and 171.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:19,983 INFO L168 Benchmark]: Boogie Preprocessor took 183.03 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:19,984 INFO L168 Benchmark]: RCFGBuilder took 1498.91 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.5 MB in the beginning and 182.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:19,985 INFO L168 Benchmark]: TraceAbstraction took 21642.00 ms. Allocated memory was 238.0 MB in the beginning and 568.3 MB in the end (delta: 330.3 MB). Free memory was 182.2 MB in the beginning and 212.9 MB in the end (delta: -30.7 MB). Peak memory consumption was 381.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:19,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 865.00 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.4 MB in the beginning and 171.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 183.03 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1498.91 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.5 MB in the beginning and 182.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21642.00 ms. Allocated memory was 238.0 MB in the beginning and 568.3 MB in the end (delta: 330.3 MB). Free memory was 182.2 MB in the beginning and 212.9 MB in the end (delta: -30.7 MB). Peak memory consumption was 381.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 <= \old(a1)) || a10 <= 1) || !(\old(a1) <= 23)) || (a19 <= 9 && 218 < a1)) || (a19 <= 9 && 3 <= a10)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 <= 8 && 7 <= a19)) || !(\old(a19) <= 9)) || ((a19 <= 9 && (9 <= a19 || 23 <= a1)) && a1 <= 23)) || (a19 <= 8 && (9 <= a19 || 23 <= a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.6s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 455 SDtfs, 2902 SDslu, 314 SDs, 0 SdLazy, 6981 SolverSat, 1390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3667 GetRequests, 3607 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2515occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1644 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 105 PreInvPairs, 153 NumberOfFragments, 528 HoareAnnotationTreeSize, 105 FomulaSimplifications, 43910 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17077 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2552 NumberOfCodeBlocks, 2552 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3629 ConstructedInterpolants, 0 QuantifiedInterpolants, 2174017 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4463 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 2590/2606 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...