/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:04:01,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:04:01,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:04:01,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:04:01,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:04:01,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:04:01,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:04:01,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:04:01,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:04:01,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:04:01,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:04:01,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:04:01,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:04:01,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:04:01,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:04:01,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:04:01,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:04:01,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:04:01,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:04:01,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:04:01,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:04:01,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:04:01,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:04:01,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:04:01,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:04:01,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:04:01,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:04:01,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:04:01,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 22:04:01,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:04:01,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:04:01,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:04:01,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:04:01,166 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:04:01,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:04:01,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:04:01,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:04:01,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:04:01,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:04:01,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:04:01,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:04:01,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:04:01,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:04:01,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:04:01,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:04:01,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:04:01,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:04:01,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:04:01,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:04:01,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:04:01,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:04:01,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:04:01,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:04:01,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:04:01,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:04:01,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:01,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:04:01,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:04:01,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:04:01,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:04:01,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:04:01,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:04:01,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:04:01,560 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:04:01,560 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 22:04:01,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce182a6f9/4dd72818cbfe43cc9fc8f7a63b0361cb/FLAGbca6f5973 [2020-07-20 22:04:02,250 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:04:02,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 22:04:02,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce182a6f9/4dd72818cbfe43cc9fc8f7a63b0361cb/FLAGbca6f5973 [2020-07-20 22:04:02,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce182a6f9/4dd72818cbfe43cc9fc8f7a63b0361cb [2020-07-20 22:04:02,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:04:02,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:04:02,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:04:02,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:04:02,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:04:02,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:04:02" (1/1) ... [2020-07-20 22:04:02,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cacc313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:02, skipping insertion in model container [2020-07-20 22:04:02,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:04:02" (1/1) ... [2020-07-20 22:04:02,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:04:02,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:04:03,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:04:03,235 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:04:03,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:04:03,370 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:04:03,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03 WrapperNode [2020-07-20 22:04:03,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:04:03,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:04:03,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:04:03,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:04:03,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... [2020-07-20 22:04:03,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:04:03,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:04:03,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:04:03,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:04:03,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:04:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:04:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:04:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:04:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:04:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:04:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:04:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:04:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:04:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:04:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:04:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:04:04,848 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:04:04,849 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:04:04,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:04:04 BoogieIcfgContainer [2020-07-20 22:04:04,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:04:04,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:04:04,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:04:04,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:04:04,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:04:02" (1/3) ... [2020-07-20 22:04:04,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8330b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:04:04, skipping insertion in model container [2020-07-20 22:04:04,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:03" (2/3) ... [2020-07-20 22:04:04,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8330b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:04:04, skipping insertion in model container [2020-07-20 22:04:04,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:04:04" (3/3) ... [2020-07-20 22:04:04,881 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-20 22:04:04,894 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:04:04,908 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:04:04,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:04:04,962 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:04:04,963 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:04:04,964 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:04:04,964 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:04:04,964 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:04:04,965 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:04:04,965 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:04:04,965 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:04:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 22:04:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 22:04:05,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:05,014 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] [2020-07-20 22:04:05,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:05,022 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-20 22:04:05,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:05,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864192546] [2020-07-20 22:04:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:05,247 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:05,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:05,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:04:05,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:05,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:05,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864192546] [2020-07-20 22:04:05,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:05,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:05,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669871509] [2020-07-20 22:04:05,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:05,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:05,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:05,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:05,387 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 22:04:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:06,333 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 22:04:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:06,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-20 22:04:06,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:06,354 INFO L225 Difference]: With dead ends: 615 [2020-07-20 22:04:06,354 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 22:04:06,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 22:04:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 22:04:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 22:04:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 22:04:06,439 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-20 22:04:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:06,440 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 22:04:06,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 22:04:06,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 22:04:06,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:06,450 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:06,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:06,651 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:06,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:06,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-20 22:04:06,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:06,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469928891] [2020-07-20 22:04:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:06,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:06,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:06,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:06,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:06,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:06,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469928891] [2020-07-20 22:04:06,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:06,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:06,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660648281] [2020-07-20 22:04:06,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:06,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:06,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:06,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:06,842 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 22:04:07,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:07,469 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 22:04:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:07,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-20 22:04:07,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:07,481 INFO L225 Difference]: With dead ends: 919 [2020-07-20 22:04:07,481 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 22:04:07,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 22:04:07,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 22:04:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 22:04:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 22:04:07,516 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 113 [2020-07-20 22:04:07,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:07,517 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 22:04:07,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 22:04:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 22:04:07,520 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:07,521 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:07,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:07,736 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:07,737 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-20 22:04:07,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:07,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677849378] [2020-07-20 22:04:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:07,872 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:07,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:07,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:07,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:07,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:07,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677849378] [2020-07-20 22:04:07,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:07,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:07,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74502751] [2020-07-20 22:04:07,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:07,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:07,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:07,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:07,923 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 22:04:08,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:08,550 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-20 22:04:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:08,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 22:04:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:08,557 INFO L225 Difference]: With dead ends: 1209 [2020-07-20 22:04:08,558 INFO L226 Difference]: Without dead ends: 753 [2020-07-20 22:04:08,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:08,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-20 22:04:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-20 22:04:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 22:04:08,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-20 22:04:08,614 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 120 [2020-07-20 22:04:08,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:08,614 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-20 22:04:08,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-20 22:04:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-20 22:04:08,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:08,623 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:08,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:08,830 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:08,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:08,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-20 22:04:08,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:08,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366145107] [2020-07-20 22:04:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:08,947 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:08,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:08,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:04:08,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:09,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:09,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366145107] [2020-07-20 22:04:09,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:09,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:04:09,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316665512] [2020-07-20 22:04:09,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:04:09,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:09,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:04:09,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:04:09,075 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 5 states. [2020-07-20 22:04:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:09,972 INFO L93 Difference]: Finished difference Result 1827 states and 2557 transitions. [2020-07-20 22:04:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:04:09,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-20 22:04:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:09,984 INFO L225 Difference]: With dead ends: 1827 [2020-07-20 22:04:09,984 INFO L226 Difference]: Without dead ends: 1224 [2020-07-20 22:04:09,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:04:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-07-20 22:04:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1208. [2020-07-20 22:04:10,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-07-20 22:04:10,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1597 transitions. [2020-07-20 22:04:10,048 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1597 transitions. Word has length 124 [2020-07-20 22:04:10,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:10,049 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1597 transitions. [2020-07-20 22:04:10,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:04:10,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1597 transitions. [2020-07-20 22:04:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 22:04:10,058 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:10,058 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:10,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:10,272 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash -570592108, now seen corresponding path program 1 times [2020-07-20 22:04:10,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:10,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206303901] [2020-07-20 22:04:10,275 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:10,372 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:10,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:10,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:04:10,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:10,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:10,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206303901] [2020-07-20 22:04:10,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:10,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:04:10,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320633154] [2020-07-20 22:04:10,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:04:10,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:10,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:04:10,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:04:10,454 INFO L87 Difference]: Start difference. First operand 1208 states and 1597 transitions. Second operand 5 states. [2020-07-20 22:04:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:11,470 INFO L93 Difference]: Finished difference Result 2890 states and 3972 transitions. [2020-07-20 22:04:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:04:11,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-20 22:04:11,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:11,486 INFO L225 Difference]: With dead ends: 2890 [2020-07-20 22:04:11,486 INFO L226 Difference]: Without dead ends: 1688 [2020-07-20 22:04:11,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:04:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-07-20 22:04:11,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1680. [2020-07-20 22:04:11,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-07-20 22:04:11,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2186 transitions. [2020-07-20 22:04:11,592 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2186 transitions. Word has length 133 [2020-07-20 22:04:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:11,592 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2186 transitions. [2020-07-20 22:04:11,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:04:11,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2186 transitions. [2020-07-20 22:04:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 22:04:11,606 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:11,607 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:11,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:11,827 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:11,828 INFO L82 PathProgramCache]: Analyzing trace with hash 411969091, now seen corresponding path program 1 times [2020-07-20 22:04:11,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:11,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473851433] [2020-07-20 22:04:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:11,989 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:11,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:11,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:11,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:12,039 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 22:04:12,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:12,156 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 22:04:12,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473851433] [2020-07-20 22:04:12,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:12,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:12,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249367172] [2020-07-20 22:04:12,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:12,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:12,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:12,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:12,160 INFO L87 Difference]: Start difference. First operand 1680 states and 2186 transitions. Second operand 6 states. [2020-07-20 22:04:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:13,041 INFO L93 Difference]: Finished difference Result 3362 states and 4385 transitions. [2020-07-20 22:04:13,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:04:13,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-20 22:04:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:13,063 INFO L225 Difference]: With dead ends: 3362 [2020-07-20 22:04:13,064 INFO L226 Difference]: Without dead ends: 1533 [2020-07-20 22:04:13,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:13,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-20 22:04:13,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2020-07-20 22:04:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-07-20 22:04:13,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1835 transitions. [2020-07-20 22:04:13,163 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1835 transitions. Word has length 142 [2020-07-20 22:04:13,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:13,164 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1835 transitions. [2020-07-20 22:04:13,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:13,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1835 transitions. [2020-07-20 22:04:13,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 22:04:13,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:13,170 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:13,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:13,385 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:13,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:13,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-20 22:04:13,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:13,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038414837] [2020-07-20 22:04:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:13,494 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:13,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:13,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:04:13,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:13,535 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:13,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:13,594 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:13,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038414837] [2020-07-20 22:04:13,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:13,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:13,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347664487] [2020-07-20 22:04:13,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:13,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:13,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:13,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:13,597 INFO L87 Difference]: Start difference. First operand 1526 states and 1835 transitions. Second operand 6 states. [2020-07-20 22:04:15,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:15,019 INFO L93 Difference]: Finished difference Result 4976 states and 6577 transitions. [2020-07-20 22:04:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:04:15,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-20 22:04:15,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:15,045 INFO L225 Difference]: With dead ends: 4976 [2020-07-20 22:04:15,045 INFO L226 Difference]: Without dead ends: 3456 [2020-07-20 22:04:15,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2020-07-20 22:04:15,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3357. [2020-07-20 22:04:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3357 states. [2020-07-20 22:04:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 4086 transitions. [2020-07-20 22:04:15,184 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 4086 transitions. Word has length 146 [2020-07-20 22:04:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:15,185 INFO L479 AbstractCegarLoop]: Abstraction has 3357 states and 4086 transitions. [2020-07-20 22:04:15,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 4086 transitions. [2020-07-20 22:04:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 22:04:15,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:15,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:15,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:15,408 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:15,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1630578362, now seen corresponding path program 1 times [2020-07-20 22:04:15,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:15,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622182718] [2020-07-20 22:04:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:15,511 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:15,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:15,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:15,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:15,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:15,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622182718] [2020-07-20 22:04:15,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:15,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:04:15,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811511437] [2020-07-20 22:04:15,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:04:15,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:15,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:04:15,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:04:15,650 INFO L87 Difference]: Start difference. First operand 3357 states and 4086 transitions. Second operand 7 states. [2020-07-20 22:04:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:17,011 INFO L93 Difference]: Finished difference Result 7856 states and 9502 transitions. [2020-07-20 22:04:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:04:17,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-20 22:04:17,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:17,034 INFO L225 Difference]: With dead ends: 7856 [2020-07-20 22:04:17,035 INFO L226 Difference]: Without dead ends: 4509 [2020-07-20 22:04:17,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 307 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 22:04:17,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2020-07-20 22:04:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4219. [2020-07-20 22:04:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4219 states. [2020-07-20 22:04:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 4813 transitions. [2020-07-20 22:04:17,170 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 4813 transitions. Word has length 156 [2020-07-20 22:04:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:17,171 INFO L479 AbstractCegarLoop]: Abstraction has 4219 states and 4813 transitions. [2020-07-20 22:04:17,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:04:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 4813 transitions. [2020-07-20 22:04:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 22:04:17,181 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:17,181 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:17,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:17,395 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:17,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:17,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2042467530, now seen corresponding path program 1 times [2020-07-20 22:04:17,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:17,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408689724] [2020-07-20 22:04:17,397 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:17,515 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:17,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:17,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:04:17,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-20 22:04:17,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:17,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408689724] [2020-07-20 22:04:17,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:17,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:04:17,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58561309] [2020-07-20 22:04:17,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:04:17,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:17,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:04:17,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:04:17,618 INFO L87 Difference]: Start difference. First operand 4219 states and 4813 transitions. Second operand 5 states. [2020-07-20 22:04:18,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:18,068 INFO L93 Difference]: Finished difference Result 6765 states and 7708 transitions. [2020-07-20 22:04:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:04:18,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-07-20 22:04:18,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:18,079 INFO L225 Difference]: With dead ends: 6765 [2020-07-20 22:04:18,079 INFO L226 Difference]: Without dead ends: 2402 [2020-07-20 22:04:18,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:18,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2020-07-20 22:04:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2400. [2020-07-20 22:04:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2020-07-20 22:04:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 2584 transitions. [2020-07-20 22:04:18,138 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 2584 transitions. Word has length 170 [2020-07-20 22:04:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:18,139 INFO L479 AbstractCegarLoop]: Abstraction has 2400 states and 2584 transitions. [2020-07-20 22:04:18,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:04:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 2584 transitions. [2020-07-20 22:04:18,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 22:04:18,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:18,145 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:18,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:18,359 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:18,360 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-20 22:04:18,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:18,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043406448] [2020-07-20 22:04:18,361 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 22:04:18,475 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:18,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:18,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:18,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 22:04:18,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 22:04:18,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043406448] [2020-07-20 22:04:18,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:18,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:18,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774651095] [2020-07-20 22:04:18,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:18,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:18,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:18,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:18,613 INFO L87 Difference]: Start difference. First operand 2400 states and 2584 transitions. Second operand 6 states. [2020-07-20 22:04:19,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:19,476 INFO L93 Difference]: Finished difference Result 3921 states and 4215 transitions. [2020-07-20 22:04:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:04:19,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 22:04:19,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:19,488 INFO L225 Difference]: With dead ends: 3921 [2020-07-20 22:04:19,488 INFO L226 Difference]: Without dead ends: 2104 [2020-07-20 22:04:19,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-20 22:04:19,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1662. [2020-07-20 22:04:19,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-20 22:04:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 1758 transitions. [2020-07-20 22:04:19,536 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 1758 transitions. Word has length 182 [2020-07-20 22:04:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:19,536 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 1758 transitions. [2020-07-20 22:04:19,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 1758 transitions. [2020-07-20 22:04:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 22:04:19,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:19,543 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 22:04:19,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:19,758 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:19,760 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-20 22:04:19,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:19,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599833006] [2020-07-20 22:04:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:04:19,894 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:19,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:19,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 22:04:19,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 22:04:19,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:19,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599833006] [2020-07-20 22:04:19,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:19,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:04:19,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981260160] [2020-07-20 22:04:19,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:04:19,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:19,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:04:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:04:19,962 INFO L87 Difference]: Start difference. First operand 1662 states and 1758 transitions. Second operand 5 states. [2020-07-20 22:04:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:20,649 INFO L93 Difference]: Finished difference Result 3931 states and 4173 transitions. [2020-07-20 22:04:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:04:20,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-07-20 22:04:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:20,663 INFO L225 Difference]: With dead ends: 3931 [2020-07-20 22:04:20,664 INFO L226 Difference]: Without dead ends: 2717 [2020-07-20 22:04:20,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2020-07-20 22:04:20,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2567. [2020-07-20 22:04:20,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2020-07-20 22:04:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2732 transitions. [2020-07-20 22:04:20,748 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2732 transitions. Word has length 204 [2020-07-20 22:04:20,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:20,748 INFO L479 AbstractCegarLoop]: Abstraction has 2567 states and 2732 transitions. [2020-07-20 22:04:20,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:04:20,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2732 transitions. [2020-07-20 22:04:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 22:04:20,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:20,761 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 22:04:20,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:20,976 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:20,976 INFO L82 PathProgramCache]: Analyzing trace with hash -571909135, now seen corresponding path program 1 times [2020-07-20 22:04:20,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:20,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787669392] [2020-07-20 22:04:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:21,258 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:21,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:21,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:04:21,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:21,322 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-20 22:04:21,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:21,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787669392] [2020-07-20 22:04:21,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:21,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:21,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211304109] [2020-07-20 22:04:21,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:21,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:21,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:21,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:21,326 INFO L87 Difference]: Start difference. First operand 2567 states and 2732 transitions. Second operand 3 states. [2020-07-20 22:04:21,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:21,831 INFO L93 Difference]: Finished difference Result 4205 states and 4482 transitions. [2020-07-20 22:04:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:21,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-07-20 22:04:21,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:21,844 INFO L225 Difference]: With dead ends: 4205 [2020-07-20 22:04:21,845 INFO L226 Difference]: Without dead ends: 2996 [2020-07-20 22:04:21,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2020-07-20 22:04:21,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2564. [2020-07-20 22:04:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2020-07-20 22:04:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2726 transitions. [2020-07-20 22:04:21,914 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2726 transitions. Word has length 212 [2020-07-20 22:04:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:21,915 INFO L479 AbstractCegarLoop]: Abstraction has 2564 states and 2726 transitions. [2020-07-20 22:04:21,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2726 transitions. [2020-07-20 22:04:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-20 22:04:21,922 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:21,924 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-20 22:04:22,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:22,140 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:22,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:22,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1841503196, now seen corresponding path program 1 times [2020-07-20 22:04:22,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:22,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109264434] [2020-07-20 22:04:22,142 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:22,280 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:22,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:22,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:22,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-20 22:04:22,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 146 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 22:04:22,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109264434] [2020-07-20 22:04:22,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:22,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:22,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009925000] [2020-07-20 22:04:22,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:22,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:22,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:22,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:22,488 INFO L87 Difference]: Start difference. First operand 2564 states and 2726 transitions. Second operand 6 states. [2020-07-20 22:04:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:23,366 INFO L93 Difference]: Finished difference Result 5580 states and 5991 transitions. [2020-07-20 22:04:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:04:23,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 217 [2020-07-20 22:04:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:23,378 INFO L225 Difference]: With dead ends: 5580 [2020-07-20 22:04:23,378 INFO L226 Difference]: Without dead ends: 2846 [2020-07-20 22:04:23,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 430 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:23,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2020-07-20 22:04:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2838. [2020-07-20 22:04:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2838 states. [2020-07-20 22:04:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 2997 transitions. [2020-07-20 22:04:23,467 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 2997 transitions. Word has length 217 [2020-07-20 22:04:23,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:23,468 INFO L479 AbstractCegarLoop]: Abstraction has 2838 states and 2997 transitions. [2020-07-20 22:04:23,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 2997 transitions. [2020-07-20 22:04:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-20 22:04:23,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:23,476 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-20 22:04:23,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:23,690 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:23,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:23,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-20 22:04:23,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:23,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825561946] [2020-07-20 22:04:23,691 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:23,823 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:23,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:23,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:04:23,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-20 22:04:23,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:23,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825561946] [2020-07-20 22:04:23,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:23,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:23,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294705368] [2020-07-20 22:04:23,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:23,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:23,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:23,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:23,882 INFO L87 Difference]: Start difference. First operand 2838 states and 2997 transitions. Second operand 3 states. [2020-07-20 22:04:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:24,314 INFO L93 Difference]: Finished difference Result 3428 states and 3597 transitions. [2020-07-20 22:04:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:24,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-20 22:04:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:24,316 INFO L225 Difference]: With dead ends: 3428 [2020-07-20 22:04:24,316 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:04:24,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:24,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:04:24,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:04:24,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:04:24,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:04:24,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-20 22:04:24,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:24,325 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:04:24,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:24,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:04:24,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:04:24,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:24,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:04:25,129 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 95 [2020-07-20 22:04:26,327 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 142 DAG size of output: 92 [2020-07-20 22:04:27,062 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-20 22:04:27,820 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-20 22:04:27,824 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:04:27,825 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a11~0 |old(~a11~0)|) (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 22:04:27,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:04:27,825 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,826 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,826 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,826 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,826 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,826 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 22:04:27,827 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 22:04:27,828 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 22:04:27,829 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,830 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 22:04:27,831 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,832 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 22:04:27,833 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,834 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 22:04:27,835 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:04:27,836 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:04:27,837 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 22:04:27,838 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 22:04:27,839 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 22:04:27,840 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 22:04:27,841 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 22:04:27,842 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 22:04:27,843 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 22:04:27,844 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 22:04:27,844 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,844 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,844 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,844 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (= 1 |old(~a11~0)|)) (.cse2 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0)) (.cse12 (= 1 ~a25~0))) (let ((.cse9 (not (<= |old(~a11~0)| 0))) (.cse22 (<= ~a28~0 10)) (.cse23 (<= 10 ~a28~0)) (.cse24 (not (<= 10 |old(~a28~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (not (<= 9 |old(~a28~0)|))) (.cse15 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse7 .cse12)) (.cse3 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (= 1 ~a11~0)) (.cse25 (not (<= |old(~a17~0)| 7))) (.cse20 (not .cse13)) (.cse10 (not (= 1 |old(~a19~0)|))) (.cse17 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= 8 |old(~a17~0)|))) (.cse14 (not (= 1 |old(~a25~0)|))) (.cse8 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9) (or .cse10 (and .cse2 .cse3 .cse4 (not .cse11) .cse5 .cse7 .cse12) .cse13 .cse14 (not (<= 11 |old(~a28~0)|)) .cse8) (or .cse10 .cse0 .cse15 .cse16 .cse14 .cse8 .cse9) (or .cse17 .cse16 .cse1 (and .cse11 .cse4 .cse18 .cse19 .cse5 .cse6 .cse7) .cse8 .cse20) (or .cse10 .cse0 .cse21 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse6 .cse7) .cse16 .cse8 .cse9) (or .cse17 .cse19 .cse16 .cse1 .cse8 .cse9) (or .cse10 .cse17 .cse16 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse7 .cse6) .cse8 .cse9) (or .cse10 (and .cse22 .cse23 .cse5) .cse0 .cse24) (or .cse0 .cse1 .cse25 (and .cse3 .cse22 .cse23 .cse5 .cse6) .cse24) (or (and .cse3 .cse4 .cse5 .cse12) .cse0 .cse14 .cse1 .cse25) (or .cse10 .cse0 .cse21 .cse16 (and .cse4 .cse11 .cse18 .cse19 .cse5 .cse6 .cse7) .cse8 .cse20) (or .cse10 .cse0 .cse21 .cse15 .cse16 .cse14 .cse8) (or .cse10 .cse17 .cse14 (and .cse3 .cse4 .cse11 .cse5 .cse7 .cse12) .cse25 .cse20) (or .cse10 (and .cse4 .cse18 .cse19 .cse5 .cse12) .cse17 .cse16 .cse14 .cse8)))) [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 22:04:27,845 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,846 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 22:04:27,847 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,848 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:04:27,849 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 22:04:27,850 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:04:27,850 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:04:27,850 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 22:04:27,851 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse8 (< 0 |old(~a19~0)|)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= 1 ~a11~0)) (.cse13 (<= ~a19~0 |old(~a19~0)|)) (.cse12 (<= 9 ~a28~0)) (.cse11 (<= ~a17~0 7)) (.cse6 (<= ~a19~0 0)) (.cse4 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse14 (<= 10 ~a28~0)) (.cse7 (<= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse2 .cse1 .cse6 .cse3) (and .cse0 .cse1 (not .cse5) (<= 11 ~a28~0) .cse4) (and .cse7 .cse8 .cse0 .cse9 .cse2 .cse10 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse11 .cse3 .cse4) (and .cse7 .cse1 .cse10 .cse6) (and .cse8 .cse0 .cse9 .cse2 .cse10 .cse12 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse10 .cse13 .cse12) (and .cse10 .cse11 .cse14 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse10 .cse13 .cse12) (not (<= |old(~a17~0)| 8)) (and .cse10 .cse11 .cse6 .cse4) (and .cse0 .cse10 .cse14) (and .cse7 .cse0 .cse1 .cse2 .cse3 (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 22:04:27,851 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:04:27,851 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:04:27,851 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse8 (< 0 |old(~a19~0)|)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= 1 ~a11~0)) (.cse13 (<= ~a19~0 |old(~a19~0)|)) (.cse12 (<= 9 ~a28~0)) (.cse11 (<= ~a17~0 7)) (.cse6 (<= ~a19~0 0)) (.cse4 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse14 (<= 10 ~a28~0)) (.cse7 (<= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse2 .cse1 .cse6 .cse3) (and .cse0 .cse1 (not .cse5) (<= 11 ~a28~0) .cse4) (and .cse7 .cse8 .cse0 .cse9 .cse2 .cse10 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse11 .cse3 .cse4) (and .cse7 .cse1 .cse10 .cse6) (and .cse8 .cse0 .cse9 .cse2 .cse10 .cse12 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse10 .cse13 .cse12) (and .cse10 .cse11 .cse14 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse10 .cse13 .cse12) (not (<= |old(~a17~0)| 8)) (and .cse10 .cse11 .cse6 .cse4) (and .cse0 .cse10 .cse14) (and .cse7 .cse0 .cse1 .cse2 .cse3 (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 22:04:27,851 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 22:04:27,851 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 22:04:27,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:04:27 BoogieIcfgContainer [2020-07-20 22:04:27,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:04:27,879 INFO L168 Benchmark]: Toolchain (without parser) took 25283.15 ms. Allocated memory was 138.9 MB in the beginning and 565.2 MB in the end (delta: 426.2 MB). Free memory was 100.7 MB in the beginning and 444.1 MB in the end (delta: -343.4 MB). Peak memory consumption was 405.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:27,880 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:04:27,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.94 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 169.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:27,881 INFO L168 Benchmark]: Boogie Preprocessor took 119.41 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 164.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:27,882 INFO L168 Benchmark]: RCFGBuilder took 1374.32 ms. Allocated memory was 202.9 MB in the beginning and 237.5 MB in the end (delta: 34.6 MB). Free memory was 164.2 MB in the beginning and 180.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:27,883 INFO L168 Benchmark]: TraceAbstraction took 23011.11 ms. Allocated memory was 237.5 MB in the beginning and 565.2 MB in the end (delta: 327.7 MB). Free memory was 179.1 MB in the beginning and 444.1 MB in the end (delta: -265.0 MB). Peak memory consumption was 385.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:27,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.94 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 169.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.41 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 164.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1374.32 ms. Allocated memory was 202.9 MB in the beginning and 237.5 MB in the end (delta: 34.6 MB). Free memory was 164.2 MB in the beginning and 180.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23011.11 ms. Allocated memory was 237.5 MB in the beginning and 565.2 MB in the end (delta: 327.7 MB). Free memory was 179.1 MB in the beginning and 444.1 MB in the end (delta: -265.0 MB). Peak memory consumption was 385.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((!(1 == \old(a19)) || !(\old(a28) <= 7)) || ((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || !(8 <= \old(a17))) || ((((1 == a11 && 8 <= a17) && a17 <= 8) && a19 <= 0) && a28 <= 7)) || ((((1 == a19 && a17 <= 8) && !(1 == a11)) && 11 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && 0 < \old(a19)) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 1 == a25)) || !(\old(a11) <= 0)) || ((((1 == a19 && 1 == a11) && a17 <= 7) && a28 <= 7) && 1 == a25)) || (((a11 <= \old(a11) && a17 <= 8) && a28 <= 10) && a19 <= 0)) || ((((((0 < \old(a19) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 10) && a19 <= \old(a19)) && 9 <= a28)) || (((a28 <= 10 && a17 <= 7) && 10 <= a28) && a19 <= 0)) || ((((((1 == a19 && 1 == a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && a19 <= \old(a19)) && 9 <= a28)) || !(\old(a17) <= 8)) || (((a28 <= 10 && a17 <= 7) && a19 <= 0) && 1 == a25)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 7) && \old(a28) <= a28) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.5s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1288 SDtfs, 5018 SDslu, 682 SDs, 0 SdLazy, 8552 SolverSat, 1304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3120 GetRequests, 3053 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4219occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 1744 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 166 PreInvPairs, 206 NumberOfFragments, 1110 HoareAnnotationTreeSize, 166 FomulaSimplifications, 5397 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2885 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2257 NumberOfCodeBlocks, 2257 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 3081 ConstructedInterpolants, 0 QuantifiedInterpolants, 947789 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5835 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 1794/1848 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...