/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -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 [2020-07-21 16:33:59,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:33:59,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:34:00,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:34:00,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:34:00,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:34:00,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:34:00,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:34:00,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:34:00,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:34:00,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:34:00,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:34:00,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:34:00,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:34:00,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:34:00,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:34:00,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:34:00,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:34:00,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:34:00,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:34:00,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:34:00,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:34:00,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:34:00,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:34:00,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:34:00,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:34:00,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:34:00,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:34:00,035 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 [2020-07-21 16:34:00,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:34:00,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:34:00,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:34:00,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:34:00,051 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:34:00,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:34:00,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:34:00,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:34:00,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:34:00,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:34:00,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:34:00,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:34:00,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:34:00,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:34:00,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:34:00,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:34:00,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:34:00,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:34:00,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:34:00,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:34:00,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:34:00,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:00,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:34:00,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:34:00,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:34:00,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:34:00,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:00,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:34:00,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:34:00,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:34:00,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:34:00,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:34:00,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:34:00,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:34:00,367 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:34:00,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 16:34:00,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aaa9684f/9ebd5a9af48b4587b22543b8b25c5412/FLAG226df432a [2020-07-21 16:34:00,924 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:34:00,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 16:34:00,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aaa9684f/9ebd5a9af48b4587b22543b8b25c5412/FLAG226df432a [2020-07-21 16:34:01,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aaa9684f/9ebd5a9af48b4587b22543b8b25c5412 [2020-07-21 16:34:01,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:34:01,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:34:01,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:01,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:34:01,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:34:01,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:01,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e7707c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01, skipping insertion in model container [2020-07-21 16:34:01,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:01,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:34:01,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:34:01,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:01,841 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:34:01,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:01,957 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:34:01,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01 WrapperNode [2020-07-21 16:34:01,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:01,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:34:01,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:34:01,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:34:01,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:01,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:01,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:01,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:02,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:02,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:02,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (1/1) ... [2020-07-21 16:34:02,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:34:02,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:34:02,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:34:02,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:34:02,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (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 [2020-07-21 16:34:02,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:34:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:34:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:34:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:34:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:34:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:34:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:34:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:34:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:34:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:34:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:34:03,233 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:34:03,233 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:34:03,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:03 BoogieIcfgContainer [2020-07-21 16:34:03,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:34:03,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:34:03,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:34:03,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:34:03,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:34:01" (1/3) ... [2020-07-21 16:34:03,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eff454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:03, skipping insertion in model container [2020-07-21 16:34:03,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:01" (2/3) ... [2020-07-21 16:34:03,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eff454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:03, skipping insertion in model container [2020-07-21 16:34:03,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:03" (3/3) ... [2020-07-21 16:34:03,247 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-21 16:34:03,257 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:34:03,265 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:34:03,279 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:34:03,304 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:34:03,304 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:34:03,304 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:34:03,305 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:34:03,305 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:34:03,305 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:34:03,305 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:34:03,306 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:34:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 16:34:03,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 16:34:03,339 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:03,340 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] [2020-07-21 16:34:03,340 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:03,347 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-21 16:34:03,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:03,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644862259] [2020-07-21 16:34:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:03,509 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:03,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:03,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:03,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:03,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:03,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644862259] [2020-07-21 16:34:03,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:03,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:03,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505486326] [2020-07-21 16:34:03,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:03,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:03,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:03,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:03,636 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 16:34:04,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:04,681 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 16:34:04,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:04,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-21 16:34:04,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:04,699 INFO L225 Difference]: With dead ends: 615 [2020-07-21 16:34:04,699 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 16:34:04,706 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 [2020-07-21 16:34:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 16:34:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 16:34:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 16:34:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 16:34:04,777 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-21 16:34:04,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:04,778 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 16:34:04,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 16:34:04,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 16:34:04,785 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:04,786 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] [2020-07-21 16:34:05,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:05,001 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:05,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:05,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-21 16:34:05,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:05,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655662189] [2020-07-21 16:34:05,003 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:05,100 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:05,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:05,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:05,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:05,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:05,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:05,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655662189] [2020-07-21 16:34:05,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:05,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:05,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760669770] [2020-07-21 16:34:05,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:05,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:05,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:05,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:05,154 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 16:34:05,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:05,751 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 16:34:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:05,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-21 16:34:05,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:05,759 INFO L225 Difference]: With dead ends: 919 [2020-07-21 16:34:05,759 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 16:34:05,761 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 [2020-07-21 16:34:05,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 16:34:05,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 16:34:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 16:34:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 16:34:05,793 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 113 [2020-07-21 16:34:05,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:05,793 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 16:34:05,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:05,794 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 16:34:05,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 16:34:05,798 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:05,799 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] [2020-07-21 16:34:06,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:06,013 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:06,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:06,014 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-21 16:34:06,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:06,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010851305] [2020-07-21 16:34:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:06,107 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:06,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:06,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:06,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:06,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:06,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010851305] [2020-07-21 16:34:06,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:06,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:06,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967268005] [2020-07-21 16:34:06,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:06,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:06,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:06,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:06,202 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 16:34:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:06,841 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-21 16:34:06,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:06,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-21 16:34:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:06,847 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 16:34:06,847 INFO L226 Difference]: Without dead ends: 753 [2020-07-21 16:34:06,848 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 [2020-07-21 16:34:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-21 16:34:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-21 16:34:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-21 16:34:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-21 16:34:06,888 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 120 [2020-07-21 16:34:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:06,889 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-21 16:34:06,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-21 16:34:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 16:34:06,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:06,895 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] [2020-07-21 16:34:07,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:07,109 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:07,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-21 16:34:07,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:07,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569874843] [2020-07-21 16:34:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:07,208 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:07,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:07,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 16:34:07,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:07,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:07,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569874843] [2020-07-21 16:34:07,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:07,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:07,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369293887] [2020-07-21 16:34:07,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:07,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:07,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:07,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:07,259 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 5 states. [2020-07-21 16:34:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:08,064 INFO L93 Difference]: Finished difference Result 1827 states and 2557 transitions. [2020-07-21 16:34:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:08,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-21 16:34:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:08,077 INFO L225 Difference]: With dead ends: 1827 [2020-07-21 16:34:08,077 INFO L226 Difference]: Without dead ends: 1224 [2020-07-21 16:34:08,080 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 [2020-07-21 16:34:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-07-21 16:34:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1208. [2020-07-21 16:34:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-07-21 16:34:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1597 transitions. [2020-07-21 16:34:08,144 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1597 transitions. Word has length 124 [2020-07-21 16:34:08,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:08,145 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1597 transitions. [2020-07-21 16:34:08,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:08,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1597 transitions. [2020-07-21 16:34:08,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 16:34:08,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:08,152 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] [2020-07-21 16:34:08,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:08,365 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:08,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:08,366 INFO L82 PathProgramCache]: Analyzing trace with hash -570592108, now seen corresponding path program 1 times [2020-07-21 16:34:08,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:08,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488515837] [2020-07-21 16:34:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:08,464 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:08,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:08,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:08,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:08,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:08,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488515837] [2020-07-21 16:34:08,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:08,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:08,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7551317] [2020-07-21 16:34:08,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:08,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:08,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:08,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:08,516 INFO L87 Difference]: Start difference. First operand 1208 states and 1597 transitions. Second operand 5 states. [2020-07-21 16:34:09,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:09,359 INFO L93 Difference]: Finished difference Result 2890 states and 3972 transitions. [2020-07-21 16:34:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:09,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-21 16:34:09,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:09,369 INFO L225 Difference]: With dead ends: 2890 [2020-07-21 16:34:09,369 INFO L226 Difference]: Without dead ends: 1688 [2020-07-21 16:34:09,373 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 [2020-07-21 16:34:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-07-21 16:34:09,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1680. [2020-07-21 16:34:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-07-21 16:34:09,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2186 transitions. [2020-07-21 16:34:09,429 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2186 transitions. Word has length 133 [2020-07-21 16:34:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:09,430 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2186 transitions. [2020-07-21 16:34:09,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2186 transitions. [2020-07-21 16:34:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 16:34:09,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:09,435 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] [2020-07-21 16:34:09,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:09,650 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:09,651 INFO L82 PathProgramCache]: Analyzing trace with hash 411969091, now seen corresponding path program 1 times [2020-07-21 16:34:09,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:09,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283610466] [2020-07-21 16:34:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:09,751 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:09,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:09,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:09,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:09,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:09,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283610466] [2020-07-21 16:34:09,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:09,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:09,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600951516] [2020-07-21 16:34:09,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:09,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:09,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:09,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:09,887 INFO L87 Difference]: Start difference. First operand 1680 states and 2186 transitions. Second operand 6 states. [2020-07-21 16:34:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:10,649 INFO L93 Difference]: Finished difference Result 3362 states and 4385 transitions. [2020-07-21 16:34:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:10,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-21 16:34:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:10,658 INFO L225 Difference]: With dead ends: 3362 [2020-07-21 16:34:10,658 INFO L226 Difference]: Without dead ends: 1533 [2020-07-21 16:34:10,668 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 [2020-07-21 16:34:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-21 16:34:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2020-07-21 16:34:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-07-21 16:34:10,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1835 transitions. [2020-07-21 16:34:10,716 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1835 transitions. Word has length 142 [2020-07-21 16:34:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:10,716 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1835 transitions. [2020-07-21 16:34:10,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1835 transitions. [2020-07-21 16:34:10,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 16:34:10,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:10,721 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] [2020-07-21 16:34:10,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:10,937 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:10,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-21 16:34:10,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:10,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150847352] [2020-07-21 16:34:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:11,030 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:11,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:11,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:11,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:11,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:11,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150847352] [2020-07-21 16:34:11,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:11,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:11,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960539407] [2020-07-21 16:34:11,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:11,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:11,142 INFO L87 Difference]: Start difference. First operand 1526 states and 1835 transitions. Second operand 6 states. [2020-07-21 16:34:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:12,402 INFO L93 Difference]: Finished difference Result 4976 states and 6577 transitions. [2020-07-21 16:34:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:12,403 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 16:34:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:12,425 INFO L225 Difference]: With dead ends: 4976 [2020-07-21 16:34:12,425 INFO L226 Difference]: Without dead ends: 3456 [2020-07-21 16:34:12,432 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 [2020-07-21 16:34:12,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2020-07-21 16:34:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3357. [2020-07-21 16:34:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3357 states. [2020-07-21 16:34:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 4086 transitions. [2020-07-21 16:34:12,544 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 4086 transitions. Word has length 146 [2020-07-21 16:34:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:12,547 INFO L479 AbstractCegarLoop]: Abstraction has 3357 states and 4086 transitions. [2020-07-21 16:34:12,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 4086 transitions. [2020-07-21 16:34:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 16:34:12,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:12,556 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] [2020-07-21 16:34:12,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:12,770 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:12,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1630578362, now seen corresponding path program 1 times [2020-07-21 16:34:12,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:12,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793114198] [2020-07-21 16:34:12,771 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:12,878 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:12,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:12,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:12,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:12,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:13,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793114198] [2020-07-21 16:34:13,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:13,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:13,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841026434] [2020-07-21 16:34:13,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:13,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:13,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:13,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:13,017 INFO L87 Difference]: Start difference. First operand 3357 states and 4086 transitions. Second operand 7 states. [2020-07-21 16:34:14,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:14,208 INFO L93 Difference]: Finished difference Result 7856 states and 9502 transitions. [2020-07-21 16:34:14,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:14,209 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-21 16:34:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:14,229 INFO L225 Difference]: With dead ends: 7856 [2020-07-21 16:34:14,229 INFO L226 Difference]: Without dead ends: 4509 [2020-07-21 16:34:14,238 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 [2020-07-21 16:34:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2020-07-21 16:34:14,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4219. [2020-07-21 16:34:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4219 states. [2020-07-21 16:34:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 4813 transitions. [2020-07-21 16:34:14,397 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 4813 transitions. Word has length 156 [2020-07-21 16:34:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:14,397 INFO L479 AbstractCegarLoop]: Abstraction has 4219 states and 4813 transitions. [2020-07-21 16:34:14,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 4813 transitions. [2020-07-21 16:34:14,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 16:34:14,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:14,408 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] [2020-07-21 16:34:14,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:14,622 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:14,622 INFO L82 PathProgramCache]: Analyzing trace with hash 2042467530, now seen corresponding path program 1 times [2020-07-21 16:34:14,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:14,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820705627] [2020-07-21 16:34:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:14,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:14,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:14,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:14,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-21 16:34:14,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:14,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820705627] [2020-07-21 16:34:14,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:14,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:14,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539061712] [2020-07-21 16:34:14,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:14,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:14,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:14,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:14,769 INFO L87 Difference]: Start difference. First operand 4219 states and 4813 transitions. Second operand 5 states. [2020-07-21 16:34:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:15,164 INFO L93 Difference]: Finished difference Result 6765 states and 7708 transitions. [2020-07-21 16:34:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:34:15,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-07-21 16:34:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:15,174 INFO L225 Difference]: With dead ends: 6765 [2020-07-21 16:34:15,174 INFO L226 Difference]: Without dead ends: 2402 [2020-07-21 16:34:15,183 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 [2020-07-21 16:34:15,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2020-07-21 16:34:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2400. [2020-07-21 16:34:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2020-07-21 16:34:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 2584 transitions. [2020-07-21 16:34:15,233 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 2584 transitions. Word has length 170 [2020-07-21 16:34:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:15,234 INFO L479 AbstractCegarLoop]: Abstraction has 2400 states and 2584 transitions. [2020-07-21 16:34:15,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 2584 transitions. [2020-07-21 16:34:15,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 16:34:15,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:15,240 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] [2020-07-21 16:34:15,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:15,454 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:15,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:15,455 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-21 16:34:15,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:15,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544870773] [2020-07-21 16:34:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:15,582 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:15,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:15,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:15,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 16:34:15,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 16:34:15,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544870773] [2020-07-21 16:34:15,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:15,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:15,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509480100] [2020-07-21 16:34:15,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:15,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:15,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:15,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:15,799 INFO L87 Difference]: Start difference. First operand 2400 states and 2584 transitions. Second operand 6 states. [2020-07-21 16:34:16,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:16,541 INFO L93 Difference]: Finished difference Result 3921 states and 4215 transitions. [2020-07-21 16:34:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:34:16,544 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 16:34:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:16,552 INFO L225 Difference]: With dead ends: 3921 [2020-07-21 16:34:16,552 INFO L226 Difference]: Without dead ends: 2104 [2020-07-21 16:34:16,557 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 [2020-07-21 16:34:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-21 16:34:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1662. [2020-07-21 16:34:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-21 16:34:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 1758 transitions. [2020-07-21 16:34:16,589 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 1758 transitions. Word has length 182 [2020-07-21 16:34:16,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:16,589 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 1758 transitions. [2020-07-21 16:34:16,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 1758 transitions. [2020-07-21 16:34:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 16:34:16,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:16,594 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] [2020-07-21 16:34:16,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:16,809 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:16,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:16,809 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-21 16:34:16,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:16,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534973966] [2020-07-21 16:34:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:16,918 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:16,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:16,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 16:34:16,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 16:34:16,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:16,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534973966] [2020-07-21 16:34:16,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:16,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:16,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951590922] [2020-07-21 16:34:16,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:16,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:16,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:16,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:16,977 INFO L87 Difference]: Start difference. First operand 1662 states and 1758 transitions. Second operand 5 states. [2020-07-21 16:34:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:17,651 INFO L93 Difference]: Finished difference Result 3931 states and 4173 transitions. [2020-07-21 16:34:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:34:17,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-07-21 16:34:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:17,660 INFO L225 Difference]: With dead ends: 3931 [2020-07-21 16:34:17,661 INFO L226 Difference]: Without dead ends: 2717 [2020-07-21 16:34:17,663 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 [2020-07-21 16:34:17,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2020-07-21 16:34:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2567. [2020-07-21 16:34:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2020-07-21 16:34:17,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2732 transitions. [2020-07-21 16:34:17,707 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2732 transitions. Word has length 204 [2020-07-21 16:34:17,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:17,708 INFO L479 AbstractCegarLoop]: Abstraction has 2567 states and 2732 transitions. [2020-07-21 16:34:17,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2732 transitions. [2020-07-21 16:34:17,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 16:34:17,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:17,714 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] [2020-07-21 16:34:17,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:17,929 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:17,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:17,930 INFO L82 PathProgramCache]: Analyzing trace with hash -571909135, now seen corresponding path program 1 times [2020-07-21 16:34:17,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:17,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680653116] [2020-07-21 16:34:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:18,047 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:18,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:18,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 16:34:18,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-21 16:34:18,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:18,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680653116] [2020-07-21 16:34:18,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:18,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:18,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579010385] [2020-07-21 16:34:18,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:18,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:18,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:18,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:18,083 INFO L87 Difference]: Start difference. First operand 2567 states and 2732 transitions. Second operand 3 states. [2020-07-21 16:34:18,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:18,514 INFO L93 Difference]: Finished difference Result 4205 states and 4482 transitions. [2020-07-21 16:34:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:18,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-07-21 16:34:18,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:18,526 INFO L225 Difference]: With dead ends: 4205 [2020-07-21 16:34:18,526 INFO L226 Difference]: Without dead ends: 2996 [2020-07-21 16:34:18,529 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 [2020-07-21 16:34:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2020-07-21 16:34:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2564. [2020-07-21 16:34:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2020-07-21 16:34:18,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2726 transitions. [2020-07-21 16:34:18,576 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2726 transitions. Word has length 212 [2020-07-21 16:34:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:18,576 INFO L479 AbstractCegarLoop]: Abstraction has 2564 states and 2726 transitions. [2020-07-21 16:34:18,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2726 transitions. [2020-07-21 16:34:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-21 16:34:18,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:18,583 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] [2020-07-21 16:34:18,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:18,797 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:18,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1841503196, now seen corresponding path program 1 times [2020-07-21 16:34:18,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:18,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108174048] [2020-07-21 16:34:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:18,915 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:18,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:18,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:18,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-21 16:34:18,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 146 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 16:34:19,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108174048] [2020-07-21 16:34:19,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:19,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:19,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457553115] [2020-07-21 16:34:19,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:19,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:19,113 INFO L87 Difference]: Start difference. First operand 2564 states and 2726 transitions. Second operand 6 states. [2020-07-21 16:34:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:19,940 INFO L93 Difference]: Finished difference Result 5580 states and 5991 transitions. [2020-07-21 16:34:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:19,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 217 [2020-07-21 16:34:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:19,949 INFO L225 Difference]: With dead ends: 5580 [2020-07-21 16:34:19,949 INFO L226 Difference]: Without dead ends: 2846 [2020-07-21 16:34:19,954 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 [2020-07-21 16:34:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2020-07-21 16:34:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2838. [2020-07-21 16:34:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2838 states. [2020-07-21 16:34:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 2997 transitions. [2020-07-21 16:34:20,014 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 2997 transitions. Word has length 217 [2020-07-21 16:34:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:20,015 INFO L479 AbstractCegarLoop]: Abstraction has 2838 states and 2997 transitions. [2020-07-21 16:34:20,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 2997 transitions. [2020-07-21 16:34:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 16:34:20,021 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:20,021 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] [2020-07-21 16:34:20,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:20,236 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:20,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-21 16:34:20,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:20,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463702216] [2020-07-21 16:34:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:34:20,352 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:20,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:20,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:20,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-21 16:34:20,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:20,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463702216] [2020-07-21 16:34:20,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:20,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:20,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923525724] [2020-07-21 16:34:20,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:20,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:20,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:20,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:20,420 INFO L87 Difference]: Start difference. First operand 2838 states and 2997 transitions. Second operand 3 states. [2020-07-21 16:34:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:20,812 INFO L93 Difference]: Finished difference Result 3428 states and 3597 transitions. [2020-07-21 16:34:20,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:20,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-21 16:34:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:20,814 INFO L225 Difference]: With dead ends: 3428 [2020-07-21 16:34:20,814 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:34:20,821 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 [2020-07-21 16:34:20,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:34:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:34:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:34:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:34:20,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-21 16:34:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:20,822 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:34:20,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:34:20,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:34:21,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:21,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:34:22,579 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 92 [2020-07-21 16:34:23,255 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-21 16:34:23,956 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-21 16:34:23,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:23,961 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)|)) [2020-07-21 16:34:23,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:23,962 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,962 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,962 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,962 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 16:34:23,963 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 16:34:23,964 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 16:34:23,965 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 16:34:23,966 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,967 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 16:34:23,968 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,969 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 16:34:23,970 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 16:34:23,971 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 16:34:23,972 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 16:34:23,973 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 16:34:23,974 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 16:34:23,975 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 16:34:23,976 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 16:34:23,977 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,978 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 16:34:23,979 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,980 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,980 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)))) [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 16:34:23,981 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 16:34:23,982 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 16:34:23,983 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 16:34:23,983 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 16:34:23,983 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 16:34:23,983 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 16:34:23,983 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 16:34:24,010 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 16:34:24,010 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 16:34:24,010 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 16:34:24,010 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 16:34:24,011 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 16:34:24,012 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:24,013 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)) [2020-07-21 16:34:24,013 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:34:24,013 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:24,013 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))) [2020-07-21 16:34:24,013 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)|)))) [2020-07-21 16:34:24,013 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:24,013 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:24,013 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)|)))) [2020-07-21 16:34:24,013 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 16:34:24,013 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 16:34:24,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:34:24 BoogieIcfgContainer [2020-07-21 16:34:24,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:34:24,064 INFO L168 Benchmark]: Toolchain (without parser) took 22810.01 ms. Allocated memory was 136.8 MB in the beginning and 601.4 MB in the end (delta: 464.5 MB). Free memory was 100.5 MB in the beginning and 530.7 MB in the end (delta: -430.2 MB). Peak memory consumption was 501.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:24,064 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 16:34:24,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.68 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 100.1 MB in the beginning and 168.9 MB in the end (delta: -68.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:24,067 INFO L168 Benchmark]: Boogie Preprocessor took 153.65 ms. Allocated memory is still 202.4 MB. Free memory was 168.9 MB in the beginning and 163.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:24,068 INFO L168 Benchmark]: RCFGBuilder took 1127.58 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 163.8 MB in the beginning and 178.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:24,069 INFO L168 Benchmark]: TraceAbstraction took 20821.62 ms. Allocated memory was 232.8 MB in the beginning and 601.4 MB in the end (delta: 368.6 MB). Free memory was 178.6 MB in the beginning and 530.7 MB in the end (delta: -352.1 MB). Peak memory consumption was 483.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:24,072 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.68 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 100.1 MB in the beginning and 168.9 MB in the end (delta: -68.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.65 ms. Allocated memory is still 202.4 MB. Free memory was 168.9 MB in the beginning and 163.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1127.58 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 163.8 MB in the beginning and 178.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20821.62 ms. Allocated memory was 232.8 MB in the beginning and 601.4 MB in the end (delta: 368.6 MB). Free memory was 178.6 MB in the beginning and 530.7 MB in the end (delta: -352.1 MB). Peak memory consumption was 483.6 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: 17.7s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1288 SDtfs, 5018 SDslu, 682 SDs, 0 SdLazy, 8552 SolverSat, 1304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s 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: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 1744 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 166 PreInvPairs, 206 NumberOfFragments, 1110 HoareAnnotationTreeSize, 166 FomulaSimplifications, 5397 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2885 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2257 NumberOfCodeBlocks, 2257 NumberOfCodeBlocksAsserted, 28 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...