/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/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:20:31,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:20:31,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:20:31,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:20:31,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:20:31,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:20:31,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:20:31,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:20:31,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:20:31,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:20:31,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:20:31,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:20:31,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:20:31,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:20:31,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:20:31,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:20:31,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:20:31,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:20:31,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:20:31,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:20:31,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:20:31,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:20:31,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:20:31,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:20:31,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:20:31,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:20:31,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:20:31,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:20:31,352 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 17:20:31,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:20:31,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:20:31,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:20:31,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:20:31,370 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:20:31,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:20:31,370 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:20:31,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:20:31,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:20:31,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:20:31,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:20:31,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:20:31,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:20:31,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:20:31,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:20:31,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:20:31,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:20:31,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:20:31,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:20:31,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:20:31,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:20:31,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:20:31,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:20:31,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:20:31,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:20:31,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:20:31,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:31,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:20:31,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:20:31,375 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 17:20:31,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:20:31,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:20:31,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:20:31,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:20:31,706 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:20:31,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-20 17:20:31,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa90fc6f6/8647c3061a834b169110e1f278fae247/FLAGcc78c465c [2020-07-20 17:20:32,341 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:20:32,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-20 17:20:32,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa90fc6f6/8647c3061a834b169110e1f278fae247/FLAGcc78c465c [2020-07-20 17:20:32,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa90fc6f6/8647c3061a834b169110e1f278fae247 [2020-07-20 17:20:32,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:20:32,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:20:32,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:20:32,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:20:32,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:20:32,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:20:32" (1/1) ... [2020-07-20 17:20:32,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c612bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:32, skipping insertion in model container [2020-07-20 17:20:32,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:20:32" (1/1) ... [2020-07-20 17:20:32,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:20:32,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:20:33,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:20:33,320 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:20:33,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:20:33,427 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:20:33,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33 WrapperNode [2020-07-20 17:20:33,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:20:33,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:20:33,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:20:33,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:20:33,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (1/1) ... [2020-07-20 17:20:33,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:20:33,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:20:33,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:20:33,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:20:33,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (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 17:20:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:20:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:20:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:20:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:20:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:20:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:20:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:20:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:20:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:20:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:20:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:20:34,816 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:20:34,817 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:20:34,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:20:34 BoogieIcfgContainer [2020-07-20 17:20:34,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:20:34,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:20:34,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:20:34,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:20:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:20:32" (1/3) ... [2020-07-20 17:20:34,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793cf901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:20:34, skipping insertion in model container [2020-07-20 17:20:34,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:20:33" (2/3) ... [2020-07-20 17:20:34,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793cf901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:20:34, skipping insertion in model container [2020-07-20 17:20:34,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:20:34" (3/3) ... [2020-07-20 17:20:34,833 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-07-20 17:20:34,845 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:20:34,854 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:20:34,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:20:34,897 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:20:34,897 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:20:34,897 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:20:34,898 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:20:34,898 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:20:34,898 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:20:34,898 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:20:34,899 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:20:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 17:20:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 17:20:34,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:34,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:34,939 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:34,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-07-20 17:20:34,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:34,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929810571] [2020-07-20 17:20:34,956 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 17:20:35,232 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:35,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:35,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:20:35,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:35,359 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 17:20:35,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:20:35,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929810571] [2020-07-20 17:20:35,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:20:35,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:20:35,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200838318] [2020-07-20 17:20:35,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:20:35,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:35,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:20:35,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:20:35,388 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 17:20:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:36,301 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 17:20:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:20:36,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-20 17:20:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:36,319 INFO L225 Difference]: With dead ends: 572 [2020-07-20 17:20:36,319 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 17:20:36,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 17:20:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 17:20:36,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 17:20:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 17:20:36,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 17:20:36,396 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2020-07-20 17:20:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:36,397 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 17:20:36,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:20:36,397 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 17:20:36,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 17:20:36,402 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:36,402 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:36,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:36,616 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:36,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:36,617 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2020-07-20 17:20:36,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:36,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761552827] [2020-07-20 17:20:36,618 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 17:20:36,746 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:36,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:36,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:20:36,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:36,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:20:36,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761552827] [2020-07-20 17:20:36,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:20:36,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:20:36,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833553947] [2020-07-20 17:20:36,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:20:36,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:36,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:20:36,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:20:36,818 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-20 17:20:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:37,663 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-20 17:20:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:20:37,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-20 17:20:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:37,671 INFO L225 Difference]: With dead ends: 842 [2020-07-20 17:20:37,672 INFO L226 Difference]: Without dead ends: 570 [2020-07-20 17:20:37,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:20:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-20 17:20:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-20 17:20:37,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 17:20:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-20 17:20:37,765 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2020-07-20 17:20:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:37,766 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-20 17:20:37,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:20:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-20 17:20:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 17:20:37,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:37,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:20:37,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:37,986 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:37,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-07-20 17:20:37,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:37,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977245624] [2020-07-20 17:20:37,989 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 17:20:38,116 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:38,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:38,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:20:38,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:38,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:20:38,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977245624] [2020-07-20 17:20:38,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:20:38,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:20:38,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173946174] [2020-07-20 17:20:38,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:20:38,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:38,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:20:38,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:20:38,189 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-20 17:20:38,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:38,798 INFO L93 Difference]: Finished difference Result 1652 states and 2385 transitions. [2020-07-20 17:20:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:20:38,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-20 17:20:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:38,807 INFO L225 Difference]: With dead ends: 1652 [2020-07-20 17:20:38,808 INFO L226 Difference]: Without dead ends: 1102 [2020-07-20 17:20:38,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 17:20:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-20 17:20:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-20 17:20:38,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-20 17:20:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1504 transitions. [2020-07-20 17:20:38,862 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1504 transitions. Word has length 130 [2020-07-20 17:20:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:38,863 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1504 transitions. [2020-07-20 17:20:38,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:20:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1504 transitions. [2020-07-20 17:20:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 17:20:38,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:38,869 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:20:39,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:39,084 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:39,085 INFO L82 PathProgramCache]: Analyzing trace with hash -423867461, now seen corresponding path program 1 times [2020-07-20 17:20:39,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:39,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739038709] [2020-07-20 17:20:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 17:20:39,239 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:39,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:39,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:20:39,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:39,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:20:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:39,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739038709] [2020-07-20 17:20:39,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:20:39,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 17:20:39,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698428649] [2020-07-20 17:20:39,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:20:39,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:39,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:20:39,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:20:39,415 INFO L87 Difference]: Start difference. First operand 1102 states and 1504 transitions. Second operand 8 states. [2020-07-20 17:20:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:41,356 INFO L93 Difference]: Finished difference Result 4220 states and 6124 transitions. [2020-07-20 17:20:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 17:20:41,357 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-07-20 17:20:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:41,389 INFO L225 Difference]: With dead ends: 4220 [2020-07-20 17:20:41,389 INFO L226 Difference]: Without dead ends: 3124 [2020-07-20 17:20:41,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 17:20:41,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-20 17:20:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2349. [2020-07-20 17:20:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-07-20 17:20:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3071 transitions. [2020-07-20 17:20:41,554 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3071 transitions. Word has length 138 [2020-07-20 17:20:41,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:41,555 INFO L479 AbstractCegarLoop]: Abstraction has 2349 states and 3071 transitions. [2020-07-20 17:20:41,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:20:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3071 transitions. [2020-07-20 17:20:41,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 17:20:41,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:41,568 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:20:41,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:41,784 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:41,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:41,785 INFO L82 PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times [2020-07-20 17:20:41,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:41,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50889489] [2020-07-20 17:20:41,786 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 17:20:41,941 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:41,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:41,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:20:41,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:42,053 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:42,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:20:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:42,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50889489] [2020-07-20 17:20:42,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:20:42,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:20:42,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193663185] [2020-07-20 17:20:42,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:20:42,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:42,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:20:42,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:20:42,164 INFO L87 Difference]: Start difference. First operand 2349 states and 3071 transitions. Second operand 7 states. [2020-07-20 17:20:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:43,707 INFO L93 Difference]: Finished difference Result 7590 states and 10616 transitions. [2020-07-20 17:20:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:20:43,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-20 17:20:43,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:43,747 INFO L225 Difference]: With dead ends: 7590 [2020-07-20 17:20:43,747 INFO L226 Difference]: Without dead ends: 5251 [2020-07-20 17:20:43,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:20:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-07-20 17:20:43,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4567. [2020-07-20 17:20:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-07-20 17:20:43,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5929 transitions. [2020-07-20 17:20:43,935 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5929 transitions. Word has length 150 [2020-07-20 17:20:43,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:43,936 INFO L479 AbstractCegarLoop]: Abstraction has 4567 states and 5929 transitions. [2020-07-20 17:20:43,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:20:43,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5929 transitions. [2020-07-20 17:20:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-20 17:20:43,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:43,951 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:44,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:44,165 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:44,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:44,166 INFO L82 PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times [2020-07-20 17:20:44,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:44,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864476230] [2020-07-20 17:20:44,167 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 17:20:44,292 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:44,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:44,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:20:44,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:44,328 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 17:20:44,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:20:44,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864476230] [2020-07-20 17:20:44,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:20:44,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:20:44,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857860671] [2020-07-20 17:20:44,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:20:44,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:44,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:20:44,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:20:44,331 INFO L87 Difference]: Start difference. First operand 4567 states and 5929 transitions. Second operand 3 states. [2020-07-20 17:20:44,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:44,996 INFO L93 Difference]: Finished difference Result 7887 states and 10249 transitions. [2020-07-20 17:20:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:20:44,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-20 17:20:45,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:45,033 INFO L225 Difference]: With dead ends: 7887 [2020-07-20 17:20:45,034 INFO L226 Difference]: Without dead ends: 4704 [2020-07-20 17:20:45,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 17:20:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-07-20 17:20:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4428. [2020-07-20 17:20:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-20 17:20:45,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5614 transitions. [2020-07-20 17:20:45,175 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5614 transitions. Word has length 154 [2020-07-20 17:20:45,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:45,175 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5614 transitions. [2020-07-20 17:20:45,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:20:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5614 transitions. [2020-07-20 17:20:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 17:20:45,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:45,188 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:20:45,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:45,403 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:45,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times [2020-07-20 17:20:45,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:45,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902760482] [2020-07-20 17:20:45,405 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 17:20:45,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:45,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:45,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:20:45,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 17:20:45,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:20:45,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902760482] [2020-07-20 17:20:45,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:20:45,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:20:45,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003832147] [2020-07-20 17:20:45,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:20:45,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:45,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:20:45,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:20:45,556 INFO L87 Difference]: Start difference. First operand 4428 states and 5614 transitions. Second operand 3 states. [2020-07-20 17:20:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:46,038 INFO L93 Difference]: Finished difference Result 7893 states and 10016 transitions. [2020-07-20 17:20:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:20:46,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-20 17:20:46,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:46,061 INFO L225 Difference]: With dead ends: 7893 [2020-07-20 17:20:46,061 INFO L226 Difference]: Without dead ends: 4428 [2020-07-20 17:20:46,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 17:20:46,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2020-07-20 17:20:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 4428. [2020-07-20 17:20:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-20 17:20:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5434 transitions. [2020-07-20 17:20:46,214 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5434 transitions. Word has length 155 [2020-07-20 17:20:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:46,215 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5434 transitions. [2020-07-20 17:20:46,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:20:46,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5434 transitions. [2020-07-20 17:20:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 17:20:46,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:46,230 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:46,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:46,445 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:46,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1256524215, now seen corresponding path program 1 times [2020-07-20 17:20:46,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:46,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220305445] [2020-07-20 17:20:46,447 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 17:20:46,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:46,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:46,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:20:46,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:46,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:20:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:20:46,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220305445] [2020-07-20 17:20:46,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:20:46,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:20:46,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161146343] [2020-07-20 17:20:46,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:20:46,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:46,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:20:46,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:20:46,703 INFO L87 Difference]: Start difference. First operand 4428 states and 5434 transitions. Second operand 7 states. [2020-07-20 17:20:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:47,554 INFO L93 Difference]: Finished difference Result 8479 states and 10446 transitions. [2020-07-20 17:20:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:20:47,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-20 17:20:47,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:47,577 INFO L225 Difference]: With dead ends: 8479 [2020-07-20 17:20:47,577 INFO L226 Difference]: Without dead ends: 5014 [2020-07-20 17:20:47,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:20:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2020-07-20 17:20:47,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 4307. [2020-07-20 17:20:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4307 states. [2020-07-20 17:20:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5252 transitions. [2020-07-20 17:20:47,768 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5252 transitions. Word has length 161 [2020-07-20 17:20:47,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:47,768 INFO L479 AbstractCegarLoop]: Abstraction has 4307 states and 5252 transitions. [2020-07-20 17:20:47,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:20:47,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5252 transitions. [2020-07-20 17:20:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 17:20:47,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:47,781 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:47,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:47,996 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:47,996 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2020-07-20 17:20:47,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:47,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088109654] [2020-07-20 17:20:47,997 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 17:20:48,122 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:48,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:48,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:20:48,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 17:20:48,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:20:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 17:20:48,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088109654] [2020-07-20 17:20:48,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:20:48,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 17:20:48,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883711189] [2020-07-20 17:20:48,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:20:48,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:48,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:20:48,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:20:48,262 INFO L87 Difference]: Start difference. First operand 4307 states and 5252 transitions. Second operand 5 states. [2020-07-20 17:20:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:48,910 INFO L93 Difference]: Finished difference Result 4315 states and 5263 transitions. [2020-07-20 17:20:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:20:48,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-07-20 17:20:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:48,937 INFO L225 Difference]: With dead ends: 4315 [2020-07-20 17:20:48,937 INFO L226 Difference]: Without dead ends: 4313 [2020-07-20 17:20:48,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:20:48,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2020-07-20 17:20:49,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4023. [2020-07-20 17:20:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4023 states. [2020-07-20 17:20:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 4905 transitions. [2020-07-20 17:20:49,027 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 4905 transitions. Word has length 165 [2020-07-20 17:20:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:49,027 INFO L479 AbstractCegarLoop]: Abstraction has 4023 states and 4905 transitions. [2020-07-20 17:20:49,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:20:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 4905 transitions. [2020-07-20 17:20:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 17:20:49,048 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:49,048 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:49,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:49,264 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:49,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2102366411, now seen corresponding path program 1 times [2020-07-20 17:20:49,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:49,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957805616] [2020-07-20 17:20:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:49,450 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:49,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:49,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:20:49,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 17:20:49,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:20:49,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957805616] [2020-07-20 17:20:49,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:20:49,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:20:49,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95148984] [2020-07-20 17:20:49,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:20:49,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:49,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:20:49,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:20:49,498 INFO L87 Difference]: Start difference. First operand 4023 states and 4905 transitions. Second operand 3 states. [2020-07-20 17:20:49,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:49,976 INFO L93 Difference]: Finished difference Result 4309 states and 5234 transitions. [2020-07-20 17:20:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:20:49,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-20 17:20:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:49,994 INFO L225 Difference]: With dead ends: 4309 [2020-07-20 17:20:49,994 INFO L226 Difference]: Without dead ends: 4307 [2020-07-20 17:20:49,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 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 17:20:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2020-07-20 17:20:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4019. [2020-07-20 17:20:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-07-20 17:20:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 4900 transitions. [2020-07-20 17:20:50,071 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 4900 transitions. Word has length 179 [2020-07-20 17:20:50,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:50,072 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 4900 transitions. [2020-07-20 17:20:50,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:20:50,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 4900 transitions. [2020-07-20 17:20:50,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 17:20:50,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:20:50,085 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:50,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:50,300 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:20:50,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:20:50,301 INFO L82 PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times [2020-07-20 17:20:50,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:20:50,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358460412] [2020-07-20 17:20:50,302 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:50,432 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:20:50,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:20:50,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:20:50,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:20:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 17:20:50,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:20:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 17:20:50,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358460412] [2020-07-20 17:20:50,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:20:50,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:20:50,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741810272] [2020-07-20 17:20:50,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:20:50,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:20:50,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:20:50,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:20:50,684 INFO L87 Difference]: Start difference. First operand 4019 states and 4900 transitions. Second operand 7 states. [2020-07-20 17:20:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:20:52,276 INFO L93 Difference]: Finished difference Result 6857 states and 8402 transitions. [2020-07-20 17:20:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:20:52,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-20 17:20:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:20:52,277 INFO L225 Difference]: With dead ends: 6857 [2020-07-20 17:20:52,278 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:20:52,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:20:52,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:20:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:20:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:20:52,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:20:52,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2020-07-20 17:20:52,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:20:52,292 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:20:52,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:20:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:20:52,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:20:52,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:52,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:20:53,512 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-20 17:20:53,803 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-20 17:20:55,510 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 170 DAG size of output: 97 [2020-07-20 17:20:56,403 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-20 17:20:57,225 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-20 17:20:57,230 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:20:57,230 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-20 17:20:57,231 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:20:57,231 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 17:20:57,231 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 17:20:57,231 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,231 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,232 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,232 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,232 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,232 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,232 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 17:20:57,232 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 17:20:57,233 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,234 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 17:20:57,235 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,236 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 17:20:57,237 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 17:20:57,238 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 17:20:57,239 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 17:20:57,240 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 17:20:57,241 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 17:20:57,242 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 17:20:57,243 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 17:20:57,244 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,245 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 17:20:57,246 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 17:20:57,247 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 17:20:57,247 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 17:20:57,247 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 17:20:57,247 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse21 (not (<= |old(~a8~0)| 13))) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse24 (not (< |old(~a8~0)| 15))) (.cse13 (not (<= 5 |old(~a16~0)|))) (.cse3 (= 1 ~a20~0)) (.cse7 (<= ~a8~0 |old(~a8~0)|)) (.cse19 (<= ~a16~0 |old(~a16~0)|)) (.cse9 (<= ~a16~0 5)) (.cse11 (<= 5 ~a16~0))) (let ((.cse8 (= 1 ~a7~0)) (.cse20 (not (<= |old(~a21~0)| 0))) (.cse5 (not (= 1 |old(~a7~0)|))) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse16 (= 1 ~a21~0)) (.cse17 (or (and .cse7 .cse19 (<= ~a8~0 13) .cse11 .cse3) (and .cse7 .cse19 .cse9 .cse11 (< ~a8~0 15)))) (.cse15 (<= 14 ~a8~0)) (.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (not (<= |old(~a16~0)| 4))) (.cse14 (and (or .cse0 .cse21) (or .cse6 .cse24 .cse13))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (<= |old(~a7~0)| 0))) (.cse10 (<= 15 ~a8~0)) (.cse4 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse4) (or .cse14 (and .cse15 .cse16 .cse12 .cse17) .cse18 .cse4) (or (and .cse7 .cse19 .cse8 .cse12) .cse5 .cse20 .cse21 .cse22) (or (and .cse7 .cse19 .cse23 .cse11 .cse12) .cse1 .cse2 .cse13 .cse4) (or .cse1 .cse5 (and .cse7 .cse19 .cse8 .cse10 .cse12) .cse22 .cse4) (or (and .cse8 .cse12 .cse17) .cse14 .cse20 .cse5 .cse13) (or (and .cse23 (or (and .cse7 .cse19 .cse3 .cse12) (and .cse19 .cse7 (<= ~a7~0 0) .cse9 .cse12) (and .cse16 .cse12 .cse17) (and .cse7 .cse19 .cse15 .cse12))) (and (or .cse18 .cse22 .cse24 .cse4) (or .cse2 .cse6 .cse4) (or .cse14 .cse4))) (or .cse1 .cse2 .cse10 .cse4)))) [2020-07-20 17:20:57,247 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 17:20:57,248 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 17:20:57,249 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 17:20:57,250 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 17:20:57,251 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,252 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 17:20:57,253 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 17:20:57,254 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 17:20:57,254 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 17:20:57,254 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 17:20:57,254 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 17:20:57,254 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:20:57,254 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-20 17:20:57,254 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:20:57,255 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:20:57,255 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-20 17:20:57,255 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:20:57,255 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse11 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse7 (<= ~a8~0 13)) (.cse12 (<= 5 ~a16~0)) (.cse9 (= 1 ~a20~0))) (let ((.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse2 (= 1 ~a21~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= 1 ~a7~0)) (.cse8 (<= ~a21~0 0)) (.cse5 (or (and .cse11 .cse12 .cse4) (and .cse7 .cse12 .cse9)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 14 ~a8~0) .cse2 .cse4 .cse3) (and .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse0 .cse8 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse7 .cse2 .cse9) (and .cse10 .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse12 .cse2) (and .cse10 .cse11 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse8 .cse5)))) [2020-07-20 17:20:57,255 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 17:20:57,255 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 17:20:57,256 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse11 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse7 (<= ~a8~0 13)) (.cse12 (<= 5 ~a16~0)) (.cse9 (= 1 ~a20~0))) (let ((.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse2 (= 1 ~a21~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= 1 ~a7~0)) (.cse8 (<= ~a21~0 0)) (.cse5 (or (and .cse11 .cse12 .cse4) (and .cse7 .cse12 .cse9)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 14 ~a8~0) .cse2 .cse4 .cse3) (and .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse0 .cse8 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse7 .cse2 .cse9) (and .cse10 .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse12 .cse2) (and .cse10 .cse11 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse8 .cse5)))) [2020-07-20 17:20:57,256 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:20:57,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:20:57 BoogieIcfgContainer [2020-07-20 17:20:57,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:20:57,282 INFO L168 Benchmark]: Toolchain (without parser) took 24662.70 ms. Allocated memory was 144.7 MB in the beginning and 587.7 MB in the end (delta: 443.0 MB). Free memory was 100.5 MB in the beginning and 316.3 MB in the end (delta: -215.8 MB). Peak memory consumption was 477.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:20:57,283 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:20:57,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.29 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.1 MB in the beginning and 170.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:20:57,284 INFO L168 Benchmark]: Boogie Preprocessor took 106.82 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 165.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:20:57,285 INFO L168 Benchmark]: RCFGBuilder took 1287.37 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 165.2 MB in the beginning and 180.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:20:57,285 INFO L168 Benchmark]: TraceAbstraction took 22455.15 ms. Allocated memory was 235.9 MB in the beginning and 587.7 MB in the end (delta: 351.8 MB). Free memory was 180.0 MB in the beginning and 316.3 MB in the end (delta: -136.3 MB). Peak memory consumption was 465.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:20:57,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 806.29 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.1 MB in the beginning and 170.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.82 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 165.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1287.37 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 165.2 MB in the beginning and 180.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22455.15 ms. Allocated memory was 235.9 MB in the beginning and 587.7 MB in the end (delta: 351.8 MB). Free memory was 180.0 MB in the beginning and 316.3 MB in the end (delta: -136.3 MB). Peak memory consumption was 465.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((1 == a7 && 15 <= a8) && 1 == a21) && a16 <= 4) || (((14 <= a8 && 1 == a21) && a8 < 15) && a16 <= 4)) || ((((a16 <= 5 && 5 <= a16) && a8 < 15) || ((a8 <= 13 && 5 <= a16) && 1 == a20)) && a21 == \old(a21))) || !(\old(a7) <= 0)) || !(5 <= \old(a16))) || (((a8 <= 13 && 1 == a7) && a21 <= 0) && a16 <= 4)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || ((a7 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || (((1 == a7 && a16 <= 5) && 5 <= a16) && 1 == a21)) || ((a7 <= 0 && a16 <= 5) && a21 == \old(a21))) || !(1 == \old(a21))) || ((1 == a7 && a21 <= 0) && (((a16 <= 5 && 5 <= a16) && a8 < 15) || ((a8 <= 13 && 5 <= a16) && 1 == a20))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.6s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 388 SDtfs, 3444 SDslu, 355 SDs, 0 SdLazy, 7754 SolverSat, 1183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2531 GetRequests, 2481 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4567occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 3034 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 173 PreInvPairs, 253 NumberOfFragments, 871 HoareAnnotationTreeSize, 173 FomulaSimplifications, 169930 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 57084 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1692 NumberOfCodeBlocks, 1692 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2502 ConstructedInterpolants, 0 QuantifiedInterpolants, 868536 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4686 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 710/755 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...