/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:29:55,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:29:55,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:29:55,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:29:55,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:29:55,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:29:55,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:29:55,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:29:55,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:29:55,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:29:55,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:29:55,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:29:55,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:29:55,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:29:55,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:29:55,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:29:55,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:29:55,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:29:55,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:29:55,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:29:55,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:29:55,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:29:55,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:29:55,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:29:55,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:29:55,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:29:55,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:29:55,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:29:55,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:29:55,394 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:29:55,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:29:55,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:29:55,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:29:55,397 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:29:55,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:29:55,397 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:29:55,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:29:55,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:29:55,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:29:55,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:29:55,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:29:55,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:29:55,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:29:55,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:29:55,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:29:55,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:29:55,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:29:55,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:29:55,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:29:55,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:29:55,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:55,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:29:55,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:29:55,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:29:55,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:29:55,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:55,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:29:55,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:29:55,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:29:55,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:29:55,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:29:55,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:29:55,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:29:55,748 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:29:55,749 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-20 17:29:55,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd20c9362/18a8b40fa6624d70916cc7645c3f462a/FLAG41af2c61f [2020-07-20 17:29:56,385 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:29:56,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-20 17:29:56,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd20c9362/18a8b40fa6624d70916cc7645c3f462a/FLAG41af2c61f [2020-07-20 17:29:56,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd20c9362/18a8b40fa6624d70916cc7645c3f462a [2020-07-20 17:29:56,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:29:56,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:29:56,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:56,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:29:56,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:29:56,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:56" (1/1) ... [2020-07-20 17:29:56,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c01a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:56, skipping insertion in model container [2020-07-20 17:29:56,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:56" (1/1) ... [2020-07-20 17:29:56,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:29:56,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:29:57,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:57,338 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:29:57,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:57,469 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:29:57,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57 WrapperNode [2020-07-20 17:29:57,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:57,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:29:57,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:29:57,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:29:57,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... [2020-07-20 17:29:57,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:29:57,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:29:57,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:29:57,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:29:57,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:29:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:29:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:29:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:29:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:29:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:29:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:29:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:29:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:29:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:29:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:29:59,069 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:29:59,069 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:29:59,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:59 BoogieIcfgContainer [2020-07-20 17:29:59,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:29:59,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:29:59,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:29:59,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:29:59,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:29:56" (1/3) ... [2020-07-20 17:29:59,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134649e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:59, skipping insertion in model container [2020-07-20 17:29:59,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:57" (2/3) ... [2020-07-20 17:29:59,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134649e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:59, skipping insertion in model container [2020-07-20 17:29:59,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:59" (3/3) ... [2020-07-20 17:29:59,086 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2020-07-20 17:29:59,097 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:29:59,111 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:29:59,126 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:29:59,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:29:59,164 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:29:59,164 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:29:59,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:29:59,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:29:59,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:29:59,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:29:59,165 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:29:59,186 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 17:29:59,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 17:29:59,195 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:59,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:59,197 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:59,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1093393358, now seen corresponding path program 1 times [2020-07-20 17:29:59,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:59,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744229411] [2020-07-20 17:29:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:59,332 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:59,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:59,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:29:59,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:59,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:59,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744229411] [2020-07-20 17:29:59,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:59,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:59,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134625459] [2020-07-20 17:29:59,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:59,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:59,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:59,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:59,448 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 17:30:00,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:00,494 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-20 17:30:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:00,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-20 17:30:00,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:00,513 INFO L225 Difference]: With dead ends: 571 [2020-07-20 17:30:00,514 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 17:30:00,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 17:30:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 17:30:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 17:30:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-20 17:30:00,597 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 45 [2020-07-20 17:30:00,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:00,598 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-20 17:30:00,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-20 17:30:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 17:30:00,604 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:00,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:00,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:00,820 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:00,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:00,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1074039414, now seen corresponding path program 1 times [2020-07-20 17:30:00,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:00,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548789361] [2020-07-20 17:30:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:00,926 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:00,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:00,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:00,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:00,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:30:00,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548789361] [2020-07-20 17:30:00,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:30:00,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:30:00,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961488327] [2020-07-20 17:30:00,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:30:00,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:00,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:30:00,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:00,972 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-20 17:30:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:01,688 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-20 17:30:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:01,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-20 17:30:01,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:01,695 INFO L225 Difference]: With dead ends: 725 [2020-07-20 17:30:01,695 INFO L226 Difference]: Without dead ends: 437 [2020-07-20 17:30:01,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:01,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-20 17:30:01,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-20 17:30:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 17:30:01,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 593 transitions. [2020-07-20 17:30:01,740 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 593 transitions. Word has length 115 [2020-07-20 17:30:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:01,741 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 593 transitions. [2020-07-20 17:30:01,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 593 transitions. [2020-07-20 17:30:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-20 17:30:01,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:01,748 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:01,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:01,962 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:01,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:01,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1870718803, now seen corresponding path program 1 times [2020-07-20 17:30:01,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:01,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304802920] [2020-07-20 17:30:01,965 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:02,071 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:02,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:02,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:02,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:02,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:30:02,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304802920] [2020-07-20 17:30:02,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:30:02,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:30:02,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712867532] [2020-07-20 17:30:02,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:30:02,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:02,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:30:02,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:02,155 INFO L87 Difference]: Start difference. First operand 437 states and 593 transitions. Second operand 3 states. [2020-07-20 17:30:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:02,857 INFO L93 Difference]: Finished difference Result 1011 states and 1407 transitions. [2020-07-20 17:30:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:02,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-20 17:30:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:02,863 INFO L225 Difference]: With dead ends: 1011 [2020-07-20 17:30:02,863 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 17:30:02,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 17:30:02,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-20 17:30:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 17:30:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 807 transitions. [2020-07-20 17:30:02,897 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 807 transitions. Word has length 122 [2020-07-20 17:30:02,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:02,898 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 807 transitions. [2020-07-20 17:30:02,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 807 transitions. [2020-07-20 17:30:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 17:30:02,901 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:02,901 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:03,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:03,117 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:03,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:03,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1404562463, now seen corresponding path program 1 times [2020-07-20 17:30:03,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:03,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771604986] [2020-07-20 17:30:03,119 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:03,262 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:03,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:03,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:03,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:03,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:30:03,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771604986] [2020-07-20 17:30:03,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:30:03,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:30:03,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037900743] [2020-07-20 17:30:03,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:30:03,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:03,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:30:03,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:03,300 INFO L87 Difference]: Start difference. First operand 580 states and 807 transitions. Second operand 3 states. [2020-07-20 17:30:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:04,041 INFO L93 Difference]: Finished difference Result 1154 states and 1634 transitions. [2020-07-20 17:30:04,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:04,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-20 17:30:04,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:04,050 INFO L225 Difference]: With dead ends: 1154 [2020-07-20 17:30:04,050 INFO L226 Difference]: Without dead ends: 1152 [2020-07-20 17:30:04,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:04,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-20 17:30:04,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 866. [2020-07-20 17:30:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-20 17:30:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1248 transitions. [2020-07-20 17:30:04,085 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1248 transitions. Word has length 132 [2020-07-20 17:30:04,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:04,086 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1248 transitions. [2020-07-20 17:30:04,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:04,086 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1248 transitions. [2020-07-20 17:30:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-20 17:30:04,091 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:04,091 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:04,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:04,300 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1402576581, now seen corresponding path program 1 times [2020-07-20 17:30:04,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:04,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102436726] [2020-07-20 17:30:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:04,485 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:04,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:04,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:04,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 17:30:04,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:30:04,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102436726] [2020-07-20 17:30:04,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:30:04,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:30:04,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882073459] [2020-07-20 17:30:04,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:30:04,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:04,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:30:04,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:04,590 INFO L87 Difference]: Start difference. First operand 866 states and 1248 transitions. Second operand 3 states. [2020-07-20 17:30:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:05,364 INFO L93 Difference]: Finished difference Result 2441 states and 3576 transitions. [2020-07-20 17:30:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:05,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-07-20 17:30:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:05,383 INFO L225 Difference]: With dead ends: 2441 [2020-07-20 17:30:05,383 INFO L226 Difference]: Without dead ends: 1581 [2020-07-20 17:30:05,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:05,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2020-07-20 17:30:05,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2020-07-20 17:30:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-07-20 17:30:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2156 transitions. [2020-07-20 17:30:05,441 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2156 transitions. Word has length 222 [2020-07-20 17:30:05,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:05,442 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 2156 transitions. [2020-07-20 17:30:05,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2156 transitions. [2020-07-20 17:30:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-20 17:30:05,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:05,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:05,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:05,654 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:05,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:05,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1725044783, now seen corresponding path program 1 times [2020-07-20 17:30:05,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:05,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541874484] [2020-07-20 17:30:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:05,779 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:05,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:05,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:05,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:05,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:30:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:06,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541874484] [2020-07-20 17:30:06,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:30:06,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:30:06,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868911639] [2020-07-20 17:30:06,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:30:06,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:06,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:30:06,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:30:06,064 INFO L87 Difference]: Start difference. First operand 1581 states and 2156 transitions. Second operand 6 states. [2020-07-20 17:30:07,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:07,311 INFO L93 Difference]: Finished difference Result 3500 states and 4849 transitions. [2020-07-20 17:30:07,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:30:07,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2020-07-20 17:30:07,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:07,326 INFO L225 Difference]: With dead ends: 3500 [2020-07-20 17:30:07,327 INFO L226 Difference]: Without dead ends: 1925 [2020-07-20 17:30:07,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 476 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:30:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-20 17:30:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1762. [2020-07-20 17:30:07,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-20 17:30:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2091 transitions. [2020-07-20 17:30:07,424 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2091 transitions. Word has length 240 [2020-07-20 17:30:07,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:07,425 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2091 transitions. [2020-07-20 17:30:07,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:30:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2091 transitions. [2020-07-20 17:30:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-20 17:30:07,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:07,432 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:07,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:07,647 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:07,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:07,648 INFO L82 PathProgramCache]: Analyzing trace with hash -335118642, now seen corresponding path program 1 times [2020-07-20 17:30:07,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:07,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856994556] [2020-07-20 17:30:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:07,837 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:07,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:07,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:07,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:07,963 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:07,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:30:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:30:08,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856994556] [2020-07-20 17:30:08,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:30:08,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:30:08,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255212194] [2020-07-20 17:30:08,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:30:08,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:08,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:30:08,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:30:08,099 INFO L87 Difference]: Start difference. First operand 1762 states and 2091 transitions. Second operand 7 states. [2020-07-20 17:30:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:09,736 INFO L93 Difference]: Finished difference Result 5058 states and 6269 transitions. [2020-07-20 17:30:09,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:30:09,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-07-20 17:30:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:09,751 INFO L225 Difference]: With dead ends: 5058 [2020-07-20 17:30:09,751 INFO L226 Difference]: Without dead ends: 2104 [2020-07-20 17:30:09,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 17:30:09,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-20 17:30:09,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2060. [2020-07-20 17:30:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-07-20 17:30:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2357 transitions. [2020-07-20 17:30:09,833 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2357 transitions. Word has length 251 [2020-07-20 17:30:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:09,833 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2357 transitions. [2020-07-20 17:30:09,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:30:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2357 transitions. [2020-07-20 17:30:09,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-07-20 17:30:09,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:09,842 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:10,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:10,046 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:10,046 INFO L82 PathProgramCache]: Analyzing trace with hash 2108247554, now seen corresponding path program 1 times [2020-07-20 17:30:10,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:10,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024662737] [2020-07-20 17:30:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:10,212 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:10,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:10,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:10,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 17:30:10,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:30:10,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024662737] [2020-07-20 17:30:10,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:30:10,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:30:10,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749829403] [2020-07-20 17:30:10,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:30:10,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:10,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:30:10,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:10,326 INFO L87 Difference]: Start difference. First operand 2060 states and 2357 transitions. Second operand 3 states. [2020-07-20 17:30:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:10,891 INFO L93 Difference]: Finished difference Result 2207 states and 2504 transitions. [2020-07-20 17:30:10,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:10,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-07-20 17:30:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:10,905 INFO L225 Difference]: With dead ends: 2207 [2020-07-20 17:30:10,905 INFO L226 Difference]: Without dead ends: 2058 [2020-07-20 17:30:10,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:10,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-07-20 17:30:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2058. [2020-07-20 17:30:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2058 states. [2020-07-20 17:30:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2345 transitions. [2020-07-20 17:30:10,960 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2345 transitions. Word has length 301 [2020-07-20 17:30:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:10,961 INFO L479 AbstractCegarLoop]: Abstraction has 2058 states and 2345 transitions. [2020-07-20 17:30:10,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2345 transitions. [2020-07-20 17:30:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-07-20 17:30:10,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:30:10,973 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:30:11,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:11,187 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:30:11,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:30:11,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1499776183, now seen corresponding path program 1 times [2020-07-20 17:30:11,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:30:11,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754321427] [2020-07-20 17:30:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:11,357 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:30:11,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:30:11,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:30:11,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:30:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-20 17:30:11,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:30:11,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754321427] [2020-07-20 17:30:11,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:30:11,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:30:11,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487653373] [2020-07-20 17:30:11,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:30:11,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:30:11,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:30:11,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:11,460 INFO L87 Difference]: Start difference. First operand 2058 states and 2345 transitions. Second operand 3 states. [2020-07-20 17:30:12,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:30:12,096 INFO L93 Difference]: Finished difference Result 2058 states and 2345 transitions. [2020-07-20 17:30:12,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:30:12,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2020-07-20 17:30:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:30:12,101 INFO L225 Difference]: With dead ends: 2058 [2020-07-20 17:30:12,101 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:30:12,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:30:12,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:30:12,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:30:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:30:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:30:12,113 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-07-20 17:30:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:30:12,116 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:30:12,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:30:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:30:12,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:30:12,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:30:12,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:30:13,506 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 59 [2020-07-20 17:30:13,657 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-20 17:30:13,822 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-20 17:30:13,828 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:30:13,828 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 17:30:13,829 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,830 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 17:30:13,831 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,832 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 17:30:13,833 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 17:30:13,834 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,834 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,834 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,834 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,834 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,834 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 17:30:13,835 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,836 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 17:30:13,837 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,838 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 17:30:13,839 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,840 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 17:30:13,841 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 17:30:13,842 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 17:30:13,843 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse10 (<= |old(~a10~0)| ~a10~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse2 (not (< 218 |old(~a1~0)|))) (.cse6 (< 218 ~a1~0)) (.cse7 (and (<= 8 ~a19~0) .cse10 .cse11)) (.cse8 (not (<= 8 |old(~a19~0)|))) (.cse0 (not (< |old(~a19~0)| 10))) (.cse5 (not (<= 2 |old(~a10~0)|))) (.cse9 (not (<= |old(~a10~0)| 2))) (.cse1 (not (<= |old(~a10~0)| 3))) (.cse3 (not (<= |old(~a19~0)| 8))) (.cse4 (and .cse10 .cse11))) (and (or .cse0 .cse1 (<= ~a10~0 3)) (or .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse0 .cse6 .cse5) (or .cse7 .cse3 .cse8) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse2 .cse6 .cse9) (or .cse7 .cse8 .cse9) (or .cse0 (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse10 (< ~a19~0 10)) .cse5) (or (not (<= |old(~a19~0)| 6)) .cse4) (or (<= ~a10~0 2) .cse9) (or .cse1 .cse3 .cse4)))) [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 17:30:13,844 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 17:30:13,845 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 17:30:13,846 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,847 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 17:30:13,848 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:30:13,849 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (< ~a19~0 10)) [2020-07-20 17:30:13,849 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:30:13,849 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:30:13,849 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (< ~a19~0 10))) [2020-07-20 17:30:13,849 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:30:13,849 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-20 17:30:13,849 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 17:30:13,850 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 17:30:13,850 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-20 17:30:13,850 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:30:13,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:30:13 BoogieIcfgContainer [2020-07-20 17:30:13,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:30:13,878 INFO L168 Benchmark]: Toolchain (without parser) took 17182.75 ms. Allocated memory was 145.8 MB in the beginning and 466.1 MB in the end (delta: 320.3 MB). Free memory was 100.8 MB in the beginning and 411.4 MB in the end (delta: -310.5 MB). Peak memory consumption was 334.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:30:13,881 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:30:13,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.10 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 100.4 MB in the beginning and 170.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:30:13,883 INFO L168 Benchmark]: Boogie Preprocessor took 113.06 ms. Allocated memory is still 204.5 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:30:13,884 INFO L168 Benchmark]: RCFGBuilder took 1485.13 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 165.6 MB in the beginning and 182.5 MB in the end (delta: -16.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:30:13,885 INFO L168 Benchmark]: TraceAbstraction took 14797.18 ms. Allocated memory was 238.6 MB in the beginning and 466.1 MB in the end (delta: 227.5 MB). Free memory was 181.0 MB in the beginning and 411.4 MB in the end (delta: -230.3 MB). Peak memory consumption was 322.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:30:13,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.10 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 100.4 MB in the beginning and 170.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.06 ms. Allocated memory is still 204.5 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1485.13 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 165.6 MB in the beginning and 182.5 MB in the end (delta: -16.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14797.18 ms. Allocated memory was 238.6 MB in the beginning and 466.1 MB in the end (delta: 227.5 MB). Free memory was 181.0 MB in the beginning and 411.4 MB in the end (delta: -230.3 MB). Peak memory consumption was 322.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((!(\old(a19) < 10) || a19 <= 6) || !(\old(a10) <= 0)) || (a19 <= 8 && 218 < a1)) || !(9 <= \old(a19))) || a10 <= 2) || (8 <= a19 && a19 < 10)) || (a19 <= 8 && a10 <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.1s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 713 SDtfs, 1626 SDslu, 157 SDs, 0 SdLazy, 4446 SolverSat, 884 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2293 GetRequests, 2265 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2060occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 493 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 134 NumberOfFragments, 290 HoareAnnotationTreeSize, 72 FomulaSimplifications, 3102 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2039 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1798 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2278 ConstructedInterpolants, 0 QuantifiedInterpolants, 1152842 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3220 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1461/1469 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...