/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:51:26,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:51:27,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:51:27,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 13:51:27,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:51:27,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:51:27,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:51:27,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:51:27,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:51:27,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:51:27,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:51:27,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:51:27,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:51:27,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:51:27,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:51:27,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:51:27,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:51:27,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:51:27,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:51:27,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:51:27,046 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 13:51:27,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:51:27,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:51:27,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:51:27,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:51:27,061 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:51:27,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:51:27,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:51:27,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:51:27,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:51:27,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:51:27,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:51:27,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:51:27,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:51:27,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:51:27,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:51:27,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:51:27,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:51:27,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:51:27,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:51:27,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:51:27,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:51:27,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:51:27,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:51:27,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:51:27,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:51:27,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:51:27,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:27,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:51:27,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:51:27,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:51:27,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:51:27,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:51:27,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:51:27,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:51:27,332 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:51:27,333 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 13:51:27,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75aacf104/74e2f75cf3cb423280e1ebb8ef853f6d/FLAG6c56d84bd [2020-07-21 13:51:27,961 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:51:27,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 13:51:27,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75aacf104/74e2f75cf3cb423280e1ebb8ef853f6d/FLAG6c56d84bd [2020-07-21 13:51:28,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75aacf104/74e2f75cf3cb423280e1ebb8ef853f6d [2020-07-21 13:51:28,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:51:28,237 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:51:28,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:51:28,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:51:28,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:51:28,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:28,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28, skipping insertion in model container [2020-07-21 13:51:28,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:28,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:51:28,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:51:28,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:51:28,825 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:51:28,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:51:28,931 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:51:28,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28 WrapperNode [2020-07-21 13:51:28,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:51:28,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:51:28,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:51:28,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:51:28,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:28,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:28,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:28,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:29,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:29,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:29,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (1/1) ... [2020-07-21 13:51:29,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:51:29,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:51:29,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:51:29,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:51:29,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (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 13:51:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:51:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:51:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:51:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:51:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:51:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:51:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:51:30,181 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:51:30,181 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:51:30,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:51:30 BoogieIcfgContainer [2020-07-21 13:51:30,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:51:30,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:51:30,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:51:30,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:51:30,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:51:28" (1/3) ... [2020-07-21 13:51:30,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:51:30, skipping insertion in model container [2020-07-21 13:51:30,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:28" (2/3) ... [2020-07-21 13:51:30,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:51:30, skipping insertion in model container [2020-07-21 13:51:30,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:51:30" (3/3) ... [2020-07-21 13:51:30,195 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-21 13:51:30,205 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:51:30,212 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:51:30,226 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:51:30,251 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:51:30,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:51:30,251 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:51:30,252 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:51:30,252 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:51:30,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:51:30,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:51:30,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:51:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:51:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 13:51:30,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:30,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:30,291 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:30,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-21 13:51:30,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:30,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-21 13:51:30,308 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 13:51:30,497 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:30,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:30,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:51:30,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:30,621 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 13:51:30,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:30,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-21 13:51:30,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:30,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:30,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568732161] [2020-07-21 13:51:30,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:30,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:30,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:30,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:30,650 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:51:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:31,519 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 13:51:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:31,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 13:51:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:31,537 INFO L225 Difference]: With dead ends: 615 [2020-07-21 13:51:31,537 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 13:51:31,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 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 13:51:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 13:51:31,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 13:51:31,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 13:51:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 13:51:31,614 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-21 13:51:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:31,615 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 13:51:31,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 13:51:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 13:51:31,621 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:31,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:31,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:31,836 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:31,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:31,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-21 13:51:31,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:31,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037520569] [2020-07-21 13:51:31,839 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 13:51:31,950 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:31,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:31,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:51:31,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:32,026 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 13:51:32,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:32,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037520569] [2020-07-21 13:51:32,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:32,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:51:32,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717582300] [2020-07-21 13:51:32,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:51:32,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:32,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:51:32,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:51:32,030 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-21 13:51:32,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:32,435 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-21 13:51:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:51:32,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-07-21 13:51:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:32,441 INFO L225 Difference]: With dead ends: 629 [2020-07-21 13:51:32,441 INFO L226 Difference]: Without dead ends: 318 [2020-07-21 13:51:32,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 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 13:51:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-21 13:51:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-21 13:51:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-21 13:51:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-21 13:51:32,464 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 157 [2020-07-21 13:51:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:32,464 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-21 13:51:32,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:51:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-21 13:51:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 13:51:32,467 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:32,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:32,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:32,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:32,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:32,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-21 13:51:32,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:32,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910587696] [2020-07-21 13:51:32,685 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 13:51:32,811 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:32,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:32,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:51:32,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:32,877 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 13:51:32,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:32,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910587696] [2020-07-21 13:51:32,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:32,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:51:32,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176494729] [2020-07-21 13:51:32,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:51:32,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:32,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:51:32,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:51:32,891 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-21 13:51:33,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:33,688 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-21 13:51:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:51:33,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-07-21 13:51:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:33,693 INFO L225 Difference]: With dead ends: 923 [2020-07-21 13:51:33,694 INFO L226 Difference]: Without dead ends: 621 [2020-07-21 13:51:33,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 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 13:51:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-21 13:51:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 459. [2020-07-21 13:51:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-21 13:51:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 601 transitions. [2020-07-21 13:51:33,725 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 601 transitions. Word has length 164 [2020-07-21 13:51:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:33,726 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 601 transitions. [2020-07-21 13:51:33,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:51:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 601 transitions. [2020-07-21 13:51:33,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 13:51:33,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:33,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:33,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:33,946 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash 612982551, now seen corresponding path program 1 times [2020-07-21 13:51:33,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:33,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260724169] [2020-07-21 13:51:33,949 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 13:51:34,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:34,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:34,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:34,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:34,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:34,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260724169] [2020-07-21 13:51:34,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:34,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:34,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146564092] [2020-07-21 13:51:34,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:34,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:34,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:34,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:34,226 INFO L87 Difference]: Start difference. First operand 459 states and 601 transitions. Second operand 6 states. [2020-07-21 13:51:35,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:35,083 INFO L93 Difference]: Finished difference Result 1075 states and 1439 transitions. [2020-07-21 13:51:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:51:35,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2020-07-21 13:51:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:35,089 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 13:51:35,090 INFO L226 Difference]: Without dead ends: 622 [2020-07-21 13:51:35,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 340 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 13:51:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-21 13:51:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 612. [2020-07-21 13:51:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-07-21 13:51:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 802 transitions. [2020-07-21 13:51:35,117 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 802 transitions. Word has length 173 [2020-07-21 13:51:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:35,117 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 802 transitions. [2020-07-21 13:51:35,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:35,117 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 802 transitions. [2020-07-21 13:51:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 13:51:35,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:35,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:35,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:35,337 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:35,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:35,338 INFO L82 PathProgramCache]: Analyzing trace with hash -393389681, now seen corresponding path program 1 times [2020-07-21 13:51:35,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:35,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798973685] [2020-07-21 13:51:35,340 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 13:51:35,452 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:35,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:35,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:35,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:51:35,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:35,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798973685] [2020-07-21 13:51:35,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:35,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:35,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533131299] [2020-07-21 13:51:35,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:35,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:35,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:35,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:35,509 INFO L87 Difference]: Start difference. First operand 612 states and 802 transitions. Second operand 3 states. [2020-07-21 13:51:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:36,060 INFO L93 Difference]: Finished difference Result 1667 states and 2203 transitions. [2020-07-21 13:51:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:36,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 13:51:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:36,073 INFO L225 Difference]: With dead ends: 1667 [2020-07-21 13:51:36,073 INFO L226 Difference]: Without dead ends: 1061 [2020-07-21 13:51:36,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 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 13:51:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-07-21 13:51:36,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1060. [2020-07-21 13:51:36,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-07-21 13:51:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1337 transitions. [2020-07-21 13:51:36,127 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1337 transitions. Word has length 177 [2020-07-21 13:51:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:36,129 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1337 transitions. [2020-07-21 13:51:36,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1337 transitions. [2020-07-21 13:51:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 13:51:36,139 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:36,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:36,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:36,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-21 13:51:36,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:36,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834821045] [2020-07-21 13:51:36,356 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 13:51:36,453 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:36,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:36,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:36,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:36,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:36,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834821045] [2020-07-21 13:51:36,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:36,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:51:36,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075090079] [2020-07-21 13:51:36,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:51:36,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:36,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:51:36,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:51:36,585 INFO L87 Difference]: Start difference. First operand 1060 states and 1337 transitions. Second operand 7 states. [2020-07-21 13:51:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:38,064 INFO L93 Difference]: Finished difference Result 3296 states and 4321 transitions. [2020-07-21 13:51:38,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:51:38,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-21 13:51:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:38,079 INFO L225 Difference]: With dead ends: 3296 [2020-07-21 13:51:38,079 INFO L226 Difference]: Without dead ends: 2242 [2020-07-21 13:51:38,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 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 13:51:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2020-07-21 13:51:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2092. [2020-07-21 13:51:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-07-21 13:51:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2524 transitions. [2020-07-21 13:51:38,166 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2524 transitions. Word has length 181 [2020-07-21 13:51:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:38,167 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2524 transitions. [2020-07-21 13:51:38,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:51:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2524 transitions. [2020-07-21 13:51:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 13:51:38,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:38,174 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:38,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:38,388 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:38,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:38,388 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-21 13:51:38,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:38,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420541694] [2020-07-21 13:51:38,389 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 13:51:38,498 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:38,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:38,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:38,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:38,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:38,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420541694] [2020-07-21 13:51:38,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:38,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:51:38,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134555159] [2020-07-21 13:51:38,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:51:38,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:38,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:51:38,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:51:38,656 INFO L87 Difference]: Start difference. First operand 2092 states and 2524 transitions. Second operand 7 states. [2020-07-21 13:51:39,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:39,429 INFO L93 Difference]: Finished difference Result 4635 states and 5681 transitions. [2020-07-21 13:51:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:51:39,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-21 13:51:39,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:39,441 INFO L225 Difference]: With dead ends: 4635 [2020-07-21 13:51:39,442 INFO L226 Difference]: Without dead ends: 2553 [2020-07-21 13:51:39,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:51:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2020-07-21 13:51:39,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2110. [2020-07-21 13:51:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2110 states. [2020-07-21 13:51:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2551 transitions. [2020-07-21 13:51:39,521 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2551 transitions. Word has length 193 [2020-07-21 13:51:39,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:39,521 INFO L479 AbstractCegarLoop]: Abstraction has 2110 states and 2551 transitions. [2020-07-21 13:51:39,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:51:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2551 transitions. [2020-07-21 13:51:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 13:51:39,532 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:39,532 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:39,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:39,747 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:39,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:39,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-21 13:51:39,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:39,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049037191] [2020-07-21 13:51:39,749 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 13:51:39,912 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:39,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:39,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:39,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 13:51:39,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:39,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049037191] [2020-07-21 13:51:39,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:39,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:39,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700150712] [2020-07-21 13:51:39,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:39,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:39,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:39,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:39,983 INFO L87 Difference]: Start difference. First operand 2110 states and 2551 transitions. Second operand 3 states. [2020-07-21 13:51:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:40,426 INFO L93 Difference]: Finished difference Result 3780 states and 4548 transitions. [2020-07-21 13:51:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:40,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-21 13:51:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:40,436 INFO L225 Difference]: With dead ends: 3780 [2020-07-21 13:51:40,436 INFO L226 Difference]: Without dead ends: 2110 [2020-07-21 13:51:40,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 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 13:51:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-07-21 13:51:40,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1964. [2020-07-21 13:51:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1964 states. [2020-07-21 13:51:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2295 transitions. [2020-07-21 13:51:40,492 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2295 transitions. Word has length 201 [2020-07-21 13:51:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:40,492 INFO L479 AbstractCegarLoop]: Abstraction has 1964 states and 2295 transitions. [2020-07-21 13:51:40,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2295 transitions. [2020-07-21 13:51:40,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 13:51:40,501 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:40,502 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:40,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:40,717 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-21 13:51:40,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:40,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356930789] [2020-07-21 13:51:40,718 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 13:51:40,824 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:40,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:40,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:51:40,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:40,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:41,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356930789] [2020-07-21 13:51:41,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:41,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:41,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659605469] [2020-07-21 13:51:41,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:41,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:41,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:41,008 INFO L87 Difference]: Start difference. First operand 1964 states and 2295 transitions. Second operand 6 states. [2020-07-21 13:51:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:41,683 INFO L93 Difference]: Finished difference Result 3943 states and 4694 transitions. [2020-07-21 13:51:41,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:51:41,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-21 13:51:41,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:41,692 INFO L225 Difference]: With dead ends: 3943 [2020-07-21 13:51:41,692 INFO L226 Difference]: Without dead ends: 1829 [2020-07-21 13:51:41,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 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 13:51:41,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-07-21 13:51:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1803. [2020-07-21 13:51:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-21 13:51:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-21 13:51:41,743 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 221 [2020-07-21 13:51:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:41,743 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-21 13:51:41,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-21 13:51:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 13:51:41,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:41,750 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:41,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:41,966 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:41,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-21 13:51:41,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:41,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734790784] [2020-07-21 13:51:41,968 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 13:51:42,085 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:42,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:42,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:42,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:51:42,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:51:42,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734790784] [2020-07-21 13:51:42,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:42,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:42,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387740462] [2020-07-21 13:51:42,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:42,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:42,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:42,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:42,279 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-21 13:51:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:43,085 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-21 13:51:43,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:51:43,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-21 13:51:43,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:43,094 INFO L225 Difference]: With dead ends: 4188 [2020-07-21 13:51:43,094 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 13:51:43,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 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 13:51:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 13:51:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-21 13:51:43,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-21 13:51:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-21 13:51:43,131 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-21 13:51:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:43,131 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-21 13:51:43,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:43,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-21 13:51:43,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 13:51:43,138 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:43,138 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:43,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:43,352 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:43,353 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-21 13:51:43,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:43,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931660898] [2020-07-21 13:51:43,353 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 13:51:43,505 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:43,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:43,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:43,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 13:51:43,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 13:51:43,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931660898] [2020-07-21 13:51:43,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:43,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:43,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255917206] [2020-07-21 13:51:43,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:43,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:43,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:43,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:43,695 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-21 13:51:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:44,508 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-21 13:51:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:51:44,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-21 13:51:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:44,514 INFO L225 Difference]: With dead ends: 2737 [2020-07-21 13:51:44,514 INFO L226 Difference]: Without dead ends: 1380 [2020-07-21 13:51:44,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 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 13:51:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-21 13:51:44,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-21 13:51:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-21 13:51:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-21 13:51:44,546 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-21 13:51:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:44,546 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-21 13:51:44,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-21 13:51:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-21 13:51:44,553 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:44,554 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:51:44,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:44,768 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:44,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:44,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-21 13:51:44,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:44,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163051770] [2020-07-21 13:51:44,769 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 13:51:44,945 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:44,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:44,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:51:44,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-21 13:51:45,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:45,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163051770] [2020-07-21 13:51:45,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:45,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:45,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746017146] [2020-07-21 13:51:45,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:45,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:45,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:45,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:45,028 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-21 13:51:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:45,489 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-21 13:51:45,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:45,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-21 13:51:45,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:45,491 INFO L225 Difference]: With dead ends: 3302 [2020-07-21 13:51:45,491 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:51:45,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 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 13:51:45,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:51:45,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:51:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:51:45,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:51:45,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-21 13:51:45,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:45,498 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:51:45,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:45,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:51:45,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:51:45,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:45,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:51:46,125 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2020-07-21 13:51:46,903 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2020-07-21 13:51:47,336 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-07-21 13:51:47,753 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-07-21 13:51:47,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:51:47,757 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 13:51:47,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:51:47,758 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,758 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,758 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,758 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,758 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,758 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:51:47,759 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:51:47,759 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:51:47,759 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:51:47,759 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:51:47,759 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,760 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:51:47,761 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,762 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:51:47,763 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,764 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:51:47,765 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:51:47,766 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:51:47,767 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:51:47,768 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,769 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:51:47,770 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:51:47,771 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,772 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:51:47,773 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,774 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:51:47,775 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,776 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,777 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (<= ~a17~0 |old(~a17~0)|)) (.cse18 (<= ~a28~0 9)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse10 (<= |old(~a28~0)| ~a28~0))) (let ((.cse4 (and .cse7 .cse18 .cse9 .cse10)) (.cse5 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse8 (<= ~a28~0 10)) (.cse12 (not (<= 9 |old(~a28~0)|))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse13 (= 1 ~a11~0)) (.cse19 (not (<= |old(~a28~0)| 7))) (.cse14 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= 10 |old(~a28~0)|))) (.cse16 (<= ~a28~0 |old(~a28~0)|)) (.cse11 (not (= 1 |old(~a19~0)|))) (.cse17 (<= ~a17~0 8)) (.cse21 (<= 8 ~a17~0)) (.cse15 (not (<= |old(~a28~0)| 8))) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse6 .cse3 (and .cse7 .cse8 .cse9 .cse10)) (or .cse11 .cse12 .cse0 .cse3 .cse4) (or .cse11 .cse5 .cse2 .cse6 (and .cse7 .cse13 .cse8 .cse9 .cse10) .cse14) (or .cse15 (and .cse16 .cse17 .cse9 .cse10) .cse1 .cse3) (or .cse11 .cse12 .cse13 .cse0 .cse3 .cse14) (or (and .cse13 .cse17 .cse18 .cse9 .cse10) .cse0 .cse1 .cse3 .cse14) (or .cse11 .cse19 .cse3 (and .cse7 .cse16 .cse9 .cse10)) (or .cse11 .cse13 .cse19 .cse3 .cse14) (or .cse11 .cse20 .cse6 (and .cse16 .cse17 .cse21 .cse9 .cse10) .cse3) (or .cse11 (and .cse17 .cse21 (<= ~a28~0 8) .cse9 .cse10) .cse15 .cse20 .cse3)))) [2020-07-21 13:51:47,777 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,777 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,777 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,777 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:51:47,777 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:51:47,777 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:51:47,778 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:51:47,779 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:51:47,780 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,781 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:51:47,782 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:51:47,783 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:51:47,784 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:51:47,784 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:51:47,784 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:51:47,784 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:51:47,784 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 13:51:47,784 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:51:47,784 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:51:47,784 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)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-21 13:51:47,785 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= 1 ~a11~0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 (<= 10 ~a28~0) .cse3) (and .cse0 .cse1 (<= ~a28~0 9) .cse4) (and .cse2 .cse5 .cse3) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse1 .cse2 .cse3) (and .cse1 (<= ~a28~0 8) .cse3) (and .cse0 .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-21 13:51:47,785 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:51:47,785 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:51:47,785 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= 1 ~a11~0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 (<= 10 ~a28~0) .cse3) (and .cse0 .cse1 (<= ~a28~0 9) .cse4) (and .cse2 .cse5 .cse3) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse1 .cse2 .cse3) (and .cse1 (<= ~a28~0 8) .cse3) (and .cse0 .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-21 13:51:47,785 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:51:47,785 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:51:47,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:51:47 BoogieIcfgContainer [2020-07-21 13:51:47,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:51:47,811 INFO L168 Benchmark]: Toolchain (without parser) took 19576.13 ms. Allocated memory was 137.4 MB in the beginning and 530.1 MB in the end (delta: 392.7 MB). Free memory was 98.4 MB in the beginning and 341.4 MB in the end (delta: -243.0 MB). Peak memory consumption was 406.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:47,812 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 13:51:47,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.17 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 98.0 MB in the beginning and 170.2 MB in the end (delta: -72.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:47,813 INFO L168 Benchmark]: Boogie Preprocessor took 101.60 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:47,814 INFO L168 Benchmark]: RCFGBuilder took 1153.25 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 165.2 MB in the beginning and 179.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:47,815 INFO L168 Benchmark]: TraceAbstraction took 17621.23 ms. Allocated memory was 233.8 MB in the beginning and 530.1 MB in the end (delta: 296.2 MB). Free memory was 179.6 MB in the beginning and 341.4 MB in the end (delta: -161.8 MB). Peak memory consumption was 391.6 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:47,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.17 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 98.0 MB in the beginning and 170.2 MB in the end (delta: -72.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.60 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1153.25 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 165.2 MB in the beginning and 179.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17621.23 ms. Allocated memory was 233.8 MB in the beginning and 530.1 MB in the end (delta: 296.2 MB). Free memory was 179.6 MB in the beginning and 341.4 MB in the end (delta: -161.8 MB). Peak memory consumption was 391.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || (((1 == a19 && a17 <= 8) && a28 <= 9) && 9 <= a28)) || ((a28 <= 10 && a17 <= 7) && a19 <= 0)) || !(8 <= \old(a17))) || (((1 == a11 && a17 <= 8) && a28 <= 10) && a19 <= 0)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || ((((1 == a19 && 1 == a11) && a28 <= 10) && a17 <= 7) && 9 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 7)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.4s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 902 SDtfs, 3641 SDslu, 506 SDs, 0 SdLazy, 7428 SolverSat, 1149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3759 GetRequests, 3695 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2110occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1405 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 112 PreInvPairs, 150 NumberOfFragments, 607 HoareAnnotationTreeSize, 112 FomulaSimplifications, 10619 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3947 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2443 NumberOfCodeBlocks, 2443 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 3722 ConstructedInterpolants, 0 QuantifiedInterpolants, 1505080 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5473 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1565/1623 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...