/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:34:38,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:34:38,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:34:38,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:34:38,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:34:38,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:34:38,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:34:38,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:34:38,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:34:38,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:34:38,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:34:38,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:34:38,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:34:38,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:34:38,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:34:38,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:34:38,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:34:38,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:34:38,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:34:38,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:34:38,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:34:38,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:34:38,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:34:38,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:34:38,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 16:34:38,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 16:34:38,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 16:34:38,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 16:34:38,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 16:34:38,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 16:34:38,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 16:34:38,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 16:34:38,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 16:34:38,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 16:34:38,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 16:34:38,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 16:34:38,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 16:34:38,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 16:34:38,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:34:38,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:34:38,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:34:38,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 16:34:38,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:34:38,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:34:38,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:34:38,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:34:38,224 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:34:38,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:34:38,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:34:38,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:34:38,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:34:38,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:34:38,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:34:38,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:34:38,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:34:38,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:34:38,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:34:38,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:34:38,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:34:38,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:34:38,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:34:38,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:34:38,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:34:38,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:38,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:34:38,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:34:38,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:34:38,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:34:38,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:38,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:34:38,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:34:38,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:34:38,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:34:38,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:34:38,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:34:38,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:34:38,536 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:34:38,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label35.c [2020-07-21 16:34:38,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70274139c/09b678cb87554e34af81cb949b9ff8ef/FLAG6890724be [2020-07-21 16:34:39,233 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:34:39,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label35.c [2020-07-21 16:34:39,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70274139c/09b678cb87554e34af81cb949b9ff8ef/FLAG6890724be [2020-07-21 16:34:39,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70274139c/09b678cb87554e34af81cb949b9ff8ef [2020-07-21 16:34:39,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:34:39,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:34:39,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:39,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:34:39,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:34:39,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:39" (1/1) ... [2020-07-21 16:34:39,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8c3854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:39, skipping insertion in model container [2020-07-21 16:34:39,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:39" (1/1) ... [2020-07-21 16:34:39,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:34:39,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:34:39,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:39,964 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:34:40,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:40,227 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:34:40,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40 WrapperNode [2020-07-21 16:34:40,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:40,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:34:40,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:34:40,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:34:40,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... [2020-07-21 16:34:40,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:34:40,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:34:40,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:34:40,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:34:40,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:34:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:34:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:34:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:34:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:34:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:34:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:34:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:34:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:34:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:34:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:34:41,664 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:34:41,665 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:34:41,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:41 BoogieIcfgContainer [2020-07-21 16:34:41,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:34:41,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:34:41,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:34:41,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:34:41,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:34:39" (1/3) ... [2020-07-21 16:34:41,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347fee5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:41, skipping insertion in model container [2020-07-21 16:34:41,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:40" (2/3) ... [2020-07-21 16:34:41,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347fee5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:41, skipping insertion in model container [2020-07-21 16:34:41,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:41" (3/3) ... [2020-07-21 16:34:41,693 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label35.c [2020-07-21 16:34:41,705 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:34:41,718 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:34:41,732 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:34:41,766 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:34:41,767 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:34:41,767 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:34:41,768 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:34:41,768 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:34:41,768 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:34:41,768 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:34:41,769 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:34:41,798 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 16:34:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-21 16:34:41,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:41,810 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] [2020-07-21 16:34:41,811 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:41,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1838417414, now seen corresponding path program 1 times [2020-07-21 16:34:41,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:41,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238080214] [2020-07-21 16:34:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:42,008 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:42,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:42,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:42,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:42,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:42,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238080214] [2020-07-21 16:34:42,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:42,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:42,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41284548] [2020-07-21 16:34:42,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:42,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:42,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:42,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:42,152 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 16:34:43,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:43,073 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 16:34:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:43,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-07-21 16:34:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:43,093 INFO L225 Difference]: With dead ends: 615 [2020-07-21 16:34:43,093 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 16:34:43,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 16:34:43,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 16:34:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 16:34:43,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 16:34:43,180 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 100 [2020-07-21 16:34:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:43,181 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 16:34:43,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 16:34:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 16:34:43,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:43,187 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] [2020-07-21 16:34:43,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:43,402 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:43,402 INFO L82 PathProgramCache]: Analyzing trace with hash -279634389, now seen corresponding path program 1 times [2020-07-21 16:34:43,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:43,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745464575] [2020-07-21 16:34:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:43,522 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:43,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:43,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:43,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:43,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:43,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745464575] [2020-07-21 16:34:43,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:43,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:43,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195779493] [2020-07-21 16:34:43,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:43,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:43,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:43,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:43,599 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 16:34:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:44,263 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 16:34:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:44,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-21 16:34:44,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:44,270 INFO L225 Difference]: With dead ends: 919 [2020-07-21 16:34:44,270 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 16:34:44,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:44,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 16:34:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 16:34:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 16:34:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 16:34:44,306 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 115 [2020-07-21 16:34:44,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:44,307 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 16:34:44,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:44,307 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 16:34:44,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 16:34:44,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:44,311 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] [2020-07-21 16:34:44,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:44,524 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:44,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash 548152606, now seen corresponding path program 1 times [2020-07-21 16:34:44,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:44,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231689816] [2020-07-21 16:34:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:44,658 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:44,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:44,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:44,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:44,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:44,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231689816] [2020-07-21 16:34:44,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:44,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:44,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774527369] [2020-07-21 16:34:44,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:44,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:44,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:44,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:44,750 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 16:34:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:45,331 INFO L93 Difference]: Finished difference Result 1365 states and 1931 transitions. [2020-07-21 16:34:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:45,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-21 16:34:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:45,342 INFO L225 Difference]: With dead ends: 1365 [2020-07-21 16:34:45,342 INFO L226 Difference]: Without dead ends: 909 [2020-07-21 16:34:45,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-07-21 16:34:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 760. [2020-07-21 16:34:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2020-07-21 16:34:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1024 transitions. [2020-07-21 16:34:45,408 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1024 transitions. Word has length 122 [2020-07-21 16:34:45,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:45,408 INFO L479 AbstractCegarLoop]: Abstraction has 760 states and 1024 transitions. [2020-07-21 16:34:45,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1024 transitions. [2020-07-21 16:34:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 16:34:45,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:45,418 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:34:45,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:45,634 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:45,635 INFO L82 PathProgramCache]: Analyzing trace with hash -729201770, now seen corresponding path program 1 times [2020-07-21 16:34:45,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:45,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831180131] [2020-07-21 16:34:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:45,727 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:45,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:45,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:45,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:45,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:45,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831180131] [2020-07-21 16:34:45,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:45,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:45,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851103025] [2020-07-21 16:34:45,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:45,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:45,799 INFO L87 Difference]: Start difference. First operand 760 states and 1024 transitions. Second operand 3 states. [2020-07-21 16:34:46,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:46,463 INFO L93 Difference]: Finished difference Result 1951 states and 2739 transitions. [2020-07-21 16:34:46,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:46,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 16:34:46,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:46,470 INFO L225 Difference]: With dead ends: 1951 [2020-07-21 16:34:46,471 INFO L226 Difference]: Without dead ends: 1197 [2020-07-21 16:34:46,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-07-21 16:34:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1050. [2020-07-21 16:34:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-07-21 16:34:46,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1363 transitions. [2020-07-21 16:34:46,507 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1363 transitions. Word has length 126 [2020-07-21 16:34:46,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:46,508 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1363 transitions. [2020-07-21 16:34:46,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:46,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1363 transitions. [2020-07-21 16:34:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 16:34:46,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:46,512 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] [2020-07-21 16:34:46,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:46,727 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:46,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:46,728 INFO L82 PathProgramCache]: Analyzing trace with hash -211507521, now seen corresponding path program 1 times [2020-07-21 16:34:46,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:46,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808051956] [2020-07-21 16:34:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:46,827 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:46,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:46,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:46,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:46,895 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 16:34:46,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:47,005 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 16:34:47,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808051956] [2020-07-21 16:34:47,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:47,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:47,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319306537] [2020-07-21 16:34:47,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:47,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:47,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:47,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:47,008 INFO L87 Difference]: Start difference. First operand 1050 states and 1363 transitions. Second operand 7 states. [2020-07-21 16:34:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:48,585 INFO L93 Difference]: Finished difference Result 2993 states and 4187 transitions. [2020-07-21 16:34:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:48,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-07-21 16:34:48,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:48,610 INFO L225 Difference]: With dead ends: 2993 [2020-07-21 16:34:48,610 INFO L226 Difference]: Without dead ends: 1949 [2020-07-21 16:34:48,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:48,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2020-07-21 16:34:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1948. [2020-07-21 16:34:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-07-21 16:34:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2579 transitions. [2020-07-21 16:34:48,702 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2579 transitions. Word has length 139 [2020-07-21 16:34:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:48,702 INFO L479 AbstractCegarLoop]: Abstraction has 1948 states and 2579 transitions. [2020-07-21 16:34:48,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2579 transitions. [2020-07-21 16:34:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 16:34:48,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:48,715 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] [2020-07-21 16:34:48,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:48,928 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:48,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:48,929 INFO L82 PathProgramCache]: Analyzing trace with hash -2046766487, now seen corresponding path program 1 times [2020-07-21 16:34:48,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:48,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701503534] [2020-07-21 16:34:48,930 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:49,027 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:49,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:49,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:49,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:49,088 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 16:34:49,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:49,163 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 16:34:49,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701503534] [2020-07-21 16:34:49,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:49,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:49,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180913437] [2020-07-21 16:34:49,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:49,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:49,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:49,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:49,190 INFO L87 Difference]: Start difference. First operand 1948 states and 2579 transitions. Second operand 7 states. [2020-07-21 16:34:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:50,140 INFO L93 Difference]: Finished difference Result 4799 states and 6656 transitions. [2020-07-21 16:34:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:50,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-07-21 16:34:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:50,158 INFO L225 Difference]: With dead ends: 4799 [2020-07-21 16:34:50,158 INFO L226 Difference]: Without dead ends: 2861 [2020-07-21 16:34:50,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 296 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 16:34:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2020-07-21 16:34:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2420. [2020-07-21 16:34:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2420 states. [2020-07-21 16:34:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3230 transitions. [2020-07-21 16:34:50,248 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3230 transitions. Word has length 151 [2020-07-21 16:34:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:50,248 INFO L479 AbstractCegarLoop]: Abstraction has 2420 states and 3230 transitions. [2020-07-21 16:34:50,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:50,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3230 transitions. [2020-07-21 16:34:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-07-21 16:34:50,256 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:50,256 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] [2020-07-21 16:34:50,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:50,470 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:50,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:50,470 INFO L82 PathProgramCache]: Analyzing trace with hash -820332092, now seen corresponding path program 1 times [2020-07-21 16:34:50,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:50,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183701057] [2020-07-21 16:34:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:50,576 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:50,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:50,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:50,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:50,636 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 16:34:50,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:50,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183701057] [2020-07-21 16:34:50,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:50,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:50,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685980214] [2020-07-21 16:34:50,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:50,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:50,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:50,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:50,638 INFO L87 Difference]: Start difference. First operand 2420 states and 3230 transitions. Second operand 3 states. [2020-07-21 16:34:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:51,212 INFO L93 Difference]: Finished difference Result 4258 states and 5631 transitions. [2020-07-21 16:34:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:51,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-07-21 16:34:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:51,225 INFO L225 Difference]: With dead ends: 4258 [2020-07-21 16:34:51,225 INFO L226 Difference]: Without dead ends: 2420 [2020-07-21 16:34:51,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2020-07-21 16:34:51,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2274. [2020-07-21 16:34:51,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2274 states. [2020-07-21 16:34:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 2913 transitions. [2020-07-21 16:34:51,296 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 2913 transitions. Word has length 159 [2020-07-21 16:34:51,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:51,297 INFO L479 AbstractCegarLoop]: Abstraction has 2274 states and 2913 transitions. [2020-07-21 16:34:51,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 2913 transitions. [2020-07-21 16:34:51,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 16:34:51,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:51,304 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:34:51,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:51,517 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:51,517 INFO L82 PathProgramCache]: Analyzing trace with hash -549524150, now seen corresponding path program 1 times [2020-07-21 16:34:51,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:51,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898188221] [2020-07-21 16:34:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:51,606 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:51,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:51,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:51,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:51,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:51,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898188221] [2020-07-21 16:34:51,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:51,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:51,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100022142] [2020-07-21 16:34:51,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:51,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:51,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:51,660 INFO L87 Difference]: Start difference. First operand 2274 states and 2913 transitions. Second operand 5 states. [2020-07-21 16:34:52,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:52,162 INFO L93 Difference]: Finished difference Result 4265 states and 5683 transitions. [2020-07-21 16:34:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:34:52,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-07-21 16:34:52,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:52,164 INFO L225 Difference]: With dead ends: 4265 [2020-07-21 16:34:52,165 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:34:52,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:34:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:34:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:34:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:34:52,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2020-07-21 16:34:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:52,182 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:34:52,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:52,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:34:52,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:34:52,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:52,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:34:53,033 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-07-21 16:34:53,191 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:53,191 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)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 16:34:53,192 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:53,192 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,192 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,192 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,192 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 16:34:53,193 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,194 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 16:34:53,195 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 16:34:53,196 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,197 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 454) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 16:34:53,198 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,199 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 16:34:53,200 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 16:34:53,201 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,202 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 16:34:53,203 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,204 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,205 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 16:34:53,206 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (not (<= |old(~a17~0)| 8))) (.cse3 (<= ~a28~0 |old(~a28~0)|)) (.cse1 (<= |old(~a28~0)| ~a28~0))) (and (or (not (<= |old(~a28~0)| 9)) (and .cse0 (<= ~a28~0 9) .cse1) .cse2) (or (not (<= 11 |old(~a28~0)|)) .cse2 (and .cse0 .cse3 .cse1)) (or (not (<= |old(~a25~0)| 0)) (and .cse0 .cse3 (<= ~a25~0 0) .cse1) .cse2) (or .cse3 (not (<= |old(~a28~0)| 8)) .cse2) (or (not (<= 8 |old(~a17~0)|)) (not (<= 10 |old(~a28~0)|)) .cse2 (and .cse3 (<= ~a17~0 8) (<= 8 ~a17~0) .cse1)))) [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 16:34:53,207 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,208 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 16:34:53,209 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 16:34:53,210 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:53,211 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 16:34:53,212 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 16:34:53,212 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:53,212 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 16:34:53,212 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:34:53,212 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:53,212 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (<= |old(~a28~0)| ~a28~0)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8))) [2020-07-21 16:34:53,212 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (<= 11 ~a28~0)) (and .cse0 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0)))) [2020-07-21 16:34:53,212 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:53,212 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:53,212 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (<= 11 ~a28~0)) (and .cse0 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0)))) [2020-07-21 16:34:53,212 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 16:34:53,213 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 16:34:53,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:34:53 BoogieIcfgContainer [2020-07-21 16:34:53,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:34:53,233 INFO L168 Benchmark]: Toolchain (without parser) took 13746.26 ms. Allocated memory was 139.5 MB in the beginning and 397.9 MB in the end (delta: 258.5 MB). Free memory was 102.8 MB in the beginning and 192.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 168.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:53,234 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 16:34:53,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.67 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.4 MB in the beginning and 173.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:53,235 INFO L168 Benchmark]: Boogie Preprocessor took 110.80 ms. Allocated memory is still 206.6 MB. Free memory was 173.7 MB in the beginning and 168.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:53,236 INFO L168 Benchmark]: RCFGBuilder took 1335.41 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 168.9 MB in the beginning and 182.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:53,237 INFO L168 Benchmark]: TraceAbstraction took 11553.34 ms. Allocated memory was 240.1 MB in the beginning and 397.9 MB in the end (delta: 157.8 MB). Free memory was 182.2 MB in the beginning and 192.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 147.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:53,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.67 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.4 MB in the beginning and 173.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.80 ms. Allocated memory is still 206.6 MB. Free memory was 173.7 MB in the beginning and 168.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1335.41 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 168.9 MB in the beginning and 182.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11553.34 ms. Allocated memory was 240.1 MB in the beginning and 397.9 MB in the end (delta: 157.8 MB). Free memory was 182.2 MB in the beginning and 192.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 147.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 454]: 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: (((((((a17 <= 8 && 11 <= a28) || (a17 <= 8 && a28 <= 9)) || !(\old(a28) <= 7)) || !(8 <= \old(a17))) || !(\old(a25) <= 0)) || (a17 <= 8 && a25 <= 0)) || !(\old(a17) <= 8)) || (a17 <= 8 && 8 <= a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.6s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 769 SDtfs, 1928 SDslu, 308 SDs, 0 SdLazy, 4418 SolverSat, 874 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1360 GetRequests, 1335 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2420occurred in iteration=6, 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, 8 MinimizatonAttempts, 1030 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 88 PreInvPairs, 136 NumberOfFragments, 246 HoareAnnotationTreeSize, 88 FomulaSimplifications, 1459 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 566 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1070 NumberOfCodeBlocks, 1070 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1350 ConstructedInterpolants, 0 QuantifiedInterpolants, 390996 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2850 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 390/398 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...