/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:23:35,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:23:35,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:23:35,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:23:35,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:23:35,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:23:35,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:23:35,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:23:35,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:23:35,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:23:35,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:23:35,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:23:35,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:23:35,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:23:35,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:23:35,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:23:35,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:23:35,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:23:35,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:23:35,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:23:35,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:23:35,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:23:35,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:23:35,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:23:35,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 01:23:35,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 01:23:35,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 01:23:35,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 01:23:35,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 01:23:35,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 01:23:35,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 01:23:35,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 01:23:35,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 01:23:35,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 01:23:35,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 01:23:35,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 01:23:35,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 01:23:35,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 01:23:35,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:23:35,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:23:35,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:23:35,203 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 01:23:35,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:23:35,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:23:35,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:23:35,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:23:35,230 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:23:35,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:23:35,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:23:35,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:23:35,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:23:35,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:23:35,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:23:35,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:23:35,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:23:35,233 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:23:35,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:23:35,233 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:23:35,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:23:35,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:23:35,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:23:35,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:23:35,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:23:35,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:23:35,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:23:35,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:23:35,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:23:35,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:23:35,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:35,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:23:35,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:23:35,236 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 -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:23:35,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:23:35,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:23:35,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:23:35,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:23:35,537 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:23:35,538 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label09.c [2020-07-21 01:23:35,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682839216/d41d22e0d4ca4d38a08fd63771e72548/FLAG7a0b2ed8d [2020-07-21 01:23:36,150 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:23:36,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label09.c [2020-07-21 01:23:36,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682839216/d41d22e0d4ca4d38a08fd63771e72548/FLAG7a0b2ed8d [2020-07-21 01:23:36,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682839216/d41d22e0d4ca4d38a08fd63771e72548 [2020-07-21 01:23:36,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:23:36,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:23:36,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:36,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:23:36,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:23:36,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:36" (1/1) ... [2020-07-21 01:23:36,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d799868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:36, skipping insertion in model container [2020-07-21 01:23:36,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:36" (1/1) ... [2020-07-21 01:23:36,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:23:36,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:23:37,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:37,070 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:23:37,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:37,211 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:23:37,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37 WrapperNode [2020-07-21 01:23:37,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:37,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:23:37,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:23:37,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:23:37,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (1/1) ... [2020-07-21 01:23:37,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:23:37,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:23:37,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:23:37,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:23:37,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (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 01:23:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:23:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:23:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:23:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:23:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:23:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:23:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:23:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:23:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:23:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:23:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:23:38,526 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:23:38,527 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:23:38,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:38 BoogieIcfgContainer [2020-07-21 01:23:38,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:23:38,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:23:38,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:23:38,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:23:38,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:23:36" (1/3) ... [2020-07-21 01:23:38,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed3bcca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:38, skipping insertion in model container [2020-07-21 01:23:38,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:37" (2/3) ... [2020-07-21 01:23:38,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed3bcca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:38, skipping insertion in model container [2020-07-21 01:23:38,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:38" (3/3) ... [2020-07-21 01:23:38,542 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label09.c [2020-07-21 01:23:38,554 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:23:38,563 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:23:38,579 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:23:38,614 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:23:38,615 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:23:38,615 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:23:38,615 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:23:38,615 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:23:38,615 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:23:38,616 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:23:38,616 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:23:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:23:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 01:23:38,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:38,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:38,655 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:38,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:38,661 INFO L82 PathProgramCache]: Analyzing trace with hash -976875031, now seen corresponding path program 1 times [2020-07-21 01:23:38,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:38,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546014079] [2020-07-21 01:23:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:38,885 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:38,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:38,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:23:38,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:39,214 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2020-07-21 01:23:39,457 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:39,487 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:23:39,488 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:23:39,588 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 01:23:39,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:39,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546014079] [2020-07-21 01:23:39,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:39,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:23:39,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806433013] [2020-07-21 01:23:39,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:23:39,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:39,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:23:39,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:39,619 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:23:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:40,884 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:23:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:23:40,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2020-07-21 01:23:40,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:40,908 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:23:40,908 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:23:40,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:23:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:23:41,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:23:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:23:41,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:23:41,035 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 127 [2020-07-21 01:23:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:41,038 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:23:41,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:23:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:23:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 01:23:41,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:41,055 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:41,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:41,272 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:41,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:41,273 INFO L82 PathProgramCache]: Analyzing trace with hash 544043736, now seen corresponding path program 1 times [2020-07-21 01:23:41,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:41,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878090622] [2020-07-21 01:23:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:41,366 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:41,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:41,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:23:41,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:41,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:42,257 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:23:42,259 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:23:42,260 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:23:42,261 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:23:42,262 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:23:42,283 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:23:42,283 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:23:42,342 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:42,418 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:42,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878090622] [2020-07-21 01:23:42,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:42,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:23:42,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32321193] [2020-07-21 01:23:42,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:23:42,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:42,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:23:42,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:23:42,552 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:23:43,554 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:23:44,677 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:23:44,921 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 01:23:46,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:46,145 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:23:46,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:23:46,147 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2020-07-21 01:23:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:46,157 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:23:46,157 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:23:46,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:23:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:23:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:23:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:23:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:23:46,230 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 136 [2020-07-21 01:23:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:46,231 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:23:46,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:23:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:23:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 01:23:46,233 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:46,233 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:46,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:46,449 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:46,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:46,450 INFO L82 PathProgramCache]: Analyzing trace with hash -970675739, now seen corresponding path program 1 times [2020-07-21 01:23:46,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:46,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542943076] [2020-07-21 01:23:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:46,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:23:46,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:46,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:23:46,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:46,608 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:23:46,609 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:46,634 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:46,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:46,766 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:46,767 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:46,792 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:46,853 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:46,857 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:46,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542943076] [2020-07-21 01:23:46,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:46,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:46,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779685817] [2020-07-21 01:23:46,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:46,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:46,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:46,877 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:23:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:48,574 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:23:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:23:48,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-07-21 01:23:48,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:48,583 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:23:48,584 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:23:48,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:23:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:23:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:23:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:23:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 01:23:48,630 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 148 [2020-07-21 01:23:48,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:48,630 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 01:23:48,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 01:23:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 01:23:48,635 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:48,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:48,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:48,850 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:48,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:48,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1526770414, now seen corresponding path program 1 times [2020-07-21 01:23:48,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:48,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770348923] [2020-07-21 01:23:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:48,991 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:48,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:48,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:48,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:49,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:49,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770348923] [2020-07-21 01:23:49,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:49,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:49,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675901465] [2020-07-21 01:23:49,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:49,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:49,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:49,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:49,034 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 01:23:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:49,661 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 01:23:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:49,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-07-21 01:23:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:49,681 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 01:23:49,681 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 01:23:49,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 01:23:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 01:23:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 01:23:49,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 01:23:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 01:23:49,756 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 169 [2020-07-21 01:23:49,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:49,758 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 01:23:49,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:49,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 01:23:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 01:23:49,768 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:49,768 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:49,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:49,969 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:49,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:49,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1239839761, now seen corresponding path program 1 times [2020-07-21 01:23:49,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:49,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519536748] [2020-07-21 01:23:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:50,075 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:50,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:50,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:50,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:50,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:50,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519536748] [2020-07-21 01:23:50,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:50,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:23:50,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363047616] [2020-07-21 01:23:50,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:23:50,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:50,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:23:50,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:23:50,211 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 01:23:51,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:51,093 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 01:23:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:51,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-07-21 01:23:51,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:51,105 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 01:23:51,106 INFO L226 Difference]: Without dead ends: 1426 [2020-07-21 01:23:51,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-07-21 01:23:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2020-07-21 01:23:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-07-21 01:23:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1745 transitions. [2020-07-21 01:23:51,153 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1745 transitions. Word has length 172 [2020-07-21 01:23:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:51,153 INFO L479 AbstractCegarLoop]: Abstraction has 1426 states and 1745 transitions. [2020-07-21 01:23:51,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:23:51,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1745 transitions. [2020-07-21 01:23:51,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 01:23:51,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:51,159 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:51,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:51,373 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:51,374 INFO L82 PathProgramCache]: Analyzing trace with hash -609344920, now seen corresponding path program 1 times [2020-07-21 01:23:51,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:51,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178861258] [2020-07-21 01:23:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:51,466 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:51,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:51,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:51,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:51,537 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 01:23:51,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:51,602 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 01:23:51,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178861258] [2020-07-21 01:23:51,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:51,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:51,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672331695] [2020-07-21 01:23:51,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:51,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:51,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:51,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:51,605 INFO L87 Difference]: Start difference. First operand 1426 states and 1745 transitions. Second operand 7 states. [2020-07-21 01:23:52,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:52,337 INFO L93 Difference]: Finished difference Result 3441 states and 4492 transitions. [2020-07-21 01:23:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:52,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-07-21 01:23:52,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:52,353 INFO L225 Difference]: With dead ends: 3441 [2020-07-21 01:23:52,353 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 01:23:52,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:52,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 01:23:52,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1879. [2020-07-21 01:23:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-07-21 01:23:52,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2253 transitions. [2020-07-21 01:23:52,430 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2253 transitions. Word has length 178 [2020-07-21 01:23:52,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:52,431 INFO L479 AbstractCegarLoop]: Abstraction has 1879 states and 2253 transitions. [2020-07-21 01:23:52,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:52,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2253 transitions. [2020-07-21 01:23:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 01:23:52,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:52,441 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:52,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:52,655 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:52,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:52,656 INFO L82 PathProgramCache]: Analyzing trace with hash 681474845, now seen corresponding path program 1 times [2020-07-21 01:23:52,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:52,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026464322] [2020-07-21 01:23:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:52,745 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:52,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:52,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:52,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:52,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:52,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026464322] [2020-07-21 01:23:52,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:52,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:52,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999285792] [2020-07-21 01:23:52,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:52,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:52,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:52,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:52,929 INFO L87 Difference]: Start difference. First operand 1879 states and 2253 transitions. Second operand 7 states. [2020-07-21 01:23:54,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:54,149 INFO L93 Difference]: Finished difference Result 4145 states and 5022 transitions. [2020-07-21 01:23:54,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:23:54,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-07-21 01:23:54,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:54,162 INFO L225 Difference]: With dead ends: 4145 [2020-07-21 01:23:54,163 INFO L226 Difference]: Without dead ends: 2326 [2020-07-21 01:23:54,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:23:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2020-07-21 01:23:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2312. [2020-07-21 01:23:54,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2020-07-21 01:23:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2567 transitions. [2020-07-21 01:23:54,250 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2567 transitions. Word has length 189 [2020-07-21 01:23:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:54,251 INFO L479 AbstractCegarLoop]: Abstraction has 2312 states and 2567 transitions. [2020-07-21 01:23:54,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2567 transitions. [2020-07-21 01:23:54,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-21 01:23:54,262 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:54,263 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:54,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:54,479 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:54,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1711068958, now seen corresponding path program 1 times [2020-07-21 01:23:54,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:54,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213391002] [2020-07-21 01:23:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:54,615 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:54,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:54,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:54,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:54,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:54,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213391002] [2020-07-21 01:23:54,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:54,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:54,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516839348] [2020-07-21 01:23:54,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:54,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:54,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:54,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:54,840 INFO L87 Difference]: Start difference. First operand 2312 states and 2567 transitions. Second operand 7 states. [2020-07-21 01:23:55,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:55,745 INFO L93 Difference]: Finished difference Result 5182 states and 5759 transitions. [2020-07-21 01:23:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:55,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-07-21 01:23:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:55,760 INFO L225 Difference]: With dead ends: 5182 [2020-07-21 01:23:55,760 INFO L226 Difference]: Without dead ends: 2930 [2020-07-21 01:23:55,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2020-07-21 01:23:55,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2921. [2020-07-21 01:23:55,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 01:23:55,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3161 transitions. [2020-07-21 01:23:55,835 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3161 transitions. Word has length 246 [2020-07-21 01:23:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:55,836 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3161 transitions. [2020-07-21 01:23:55,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3161 transitions. [2020-07-21 01:23:55,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-21 01:23:55,846 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:55,847 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:56,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:56,061 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:56,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:56,062 INFO L82 PathProgramCache]: Analyzing trace with hash -256908631, now seen corresponding path program 1 times [2020-07-21 01:23:56,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:56,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110490807] [2020-07-21 01:23:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:56,161 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:23:56,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:56,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:56,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-07-21 01:23:56,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 156 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 01:23:56,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110490807] [2020-07-21 01:23:56,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:56,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:56,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302459045] [2020-07-21 01:23:56,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:56,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:56,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:56,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:56,345 INFO L87 Difference]: Start difference. First operand 2921 states and 3161 transitions. Second operand 7 states. [2020-07-21 01:23:57,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:57,246 INFO L93 Difference]: Finished difference Result 3659 states and 3982 transitions. [2020-07-21 01:23:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:23:57,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-07-21 01:23:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:57,257 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 01:23:57,257 INFO L226 Difference]: Without dead ends: 1388 [2020-07-21 01:23:57,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:57,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-07-21 01:23:57,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2020-07-21 01:23:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-07-21 01:23:57,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1468 transitions. [2020-07-21 01:23:57,300 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1468 transitions. Word has length 262 [2020-07-21 01:23:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:57,301 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1468 transitions. [2020-07-21 01:23:57,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:57,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1468 transitions. [2020-07-21 01:23:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-21 01:23:57,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:57,306 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:57,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:57,523 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:57,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:57,523 INFO L82 PathProgramCache]: Analyzing trace with hash -483886550, now seen corresponding path program 1 times [2020-07-21 01:23:57,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:57,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962082400] [2020-07-21 01:23:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:57,671 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:57,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:57,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:57,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 01:23:57,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:57,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962082400] [2020-07-21 01:23:57,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:57,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:57,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931809667] [2020-07-21 01:23:57,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:57,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:57,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:57,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:57,778 INFO L87 Difference]: Start difference. First operand 1388 states and 1468 transitions. Second operand 3 states. [2020-07-21 01:23:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:58,022 INFO L93 Difference]: Finished difference Result 1388 states and 1468 transitions. [2020-07-21 01:23:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:58,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2020-07-21 01:23:58,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:58,024 INFO L225 Difference]: With dead ends: 1388 [2020-07-21 01:23:58,024 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:23:58,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 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 01:23:58,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:23:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:23:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:23:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:23:58,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2020-07-21 01:23:58,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:58,029 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:23:58,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:23:58,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:23:58,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:58,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:23:58,747 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 95 [2020-07-21 01:24:00,077 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 146 DAG size of output: 107 [2020-07-21 01:24:00,607 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 53 [2020-07-21 01:24:01,168 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 64 [2020-07-21 01:24:01,173 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:01,173 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)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:24:01,173 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:24:01,174 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:24:01,175 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:24:01,176 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:24:01,177 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,178 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 535) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:24:01,179 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,180 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:24:01,181 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,182 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:24:01,183 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:01,184 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,185 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:01,186 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,186 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:24:01,189 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:24:01,190 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:24:01,191 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,192 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:24:01,193 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:24:01,194 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:24:01,195 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,195 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,195 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,195 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (not (= 1 ~a21~0))) (.cse22 (= 1 |old(~a25~0)|))) (let ((.cse2 (<= ~a28~0 9)) (.cse20 (= 1 ~a11~0)) (.cse16 (not (< |old(~a28~0)| 11))) (.cse18 (not (= 1 |old(~a11~0)|))) (.cse19 (<= ~a11~0 |old(~a11~0)|)) (.cse21 (not (< 8 |old(~a28~0)|))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse4 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= 8 |old(~a17~0)|))) (.cse11 (<= 8 ~a17~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse10 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (< ~a17~0 9)) (.cse15 (= 1 ~a25~0)) (.cse5 (not .cse22)) (.cse6 (not (< |old(~a17~0)| 9))) (.cse8 (not (<= |old(~a11~0)| 0))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse24 (<= ~a17~0 |old(~a17~0)|)) (.cse12 (= ~a19~0 |old(~a19~0)|)) (.cse25 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse7)) (.cse14 (<= |old(~a28~0)| ~a28~0)) (.cse17 (= ~a25~0 |old(~a25~0)|)) (.cse23 (not (<= |old(~a17~0)| 7)))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse5 .cse6 (and .cse1 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse7 .cse8 .cse16) (or .cse4 .cse9 .cse6 (and .cse10 .cse1 .cse11 .cse12 .cse13 .cse14 .cse17) .cse18) (or .cse0 (not (= 10 |old(~a28~0)|)) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse19 (= 10 ~a28~0) (= 8 ~a17~0)) (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse7 .cse8) (or .cse0 (and .cse20 .cse2) .cse4 .cse6 .cse21 .cse18) (or .cse0 (and .cse10 .cse20 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6 .cse16 .cse18) (or .cse19 (and .cse22 (not (< 9 |old(~a28~0)|))) .cse23 .cse21 .cse7 .cse8) (or .cse3 (and .cse24 .cse25 .cse14 .cse17) .cse23) (or .cse4 .cse9 .cse6 .cse7 .cse8 (and .cse1 .cse10 .cse11 .cse12 .cse13 .cse14 .cse17)) (or .cse0 (and .cse1 .cse10 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6 (not (<= 11 |old(~a28~0)|)) .cse7 .cse8) (or .cse0 (and .cse24 .cse12 .cse25 .cse14 .cse17) .cse23)))) [2020-07-21 01:24:01,195 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:24:01,196 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,197 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:24:01,198 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:24:01,199 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:24:01,199 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:24:01,199 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:24:01,199 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:24:01,199 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:24:01,200 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,201 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:01,203 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:24:01,203 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:24:01,203 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:24:01,203 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:24:01,203 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:24:01,204 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:01,205 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:24:01,205 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:24:01,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:01,206 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (< |old(~a17~0)| 9)) (not (= 7 |old(~a28~0)|)) (and (= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:24:01,206 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse4 (<= ~a17~0 7)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse9 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse5 (<= 9 ~a28~0)) (.cse7 (= 1 ~a25~0)) (.cse6 (= 1 ~a19~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5) (and .cse6 .cse0 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3) (and .cse6 .cse8 .cse9 .cse3 .cse7) (and .cse6 .cse4) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse9 .cse3 .cse5 .cse7) (and .cse6 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)))) [2020-07-21 01:24:01,206 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:01,206 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:01,206 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse4 (<= ~a17~0 7)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse9 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse5 (<= 9 ~a28~0)) (.cse7 (= 1 ~a25~0)) (.cse6 (= 1 ~a19~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5) (and .cse6 .cse0 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3) (and .cse6 .cse8 .cse9 .cse3 .cse7) (and .cse6 .cse4) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse9 .cse3 .cse5 .cse7) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse6 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))))) [2020-07-21 01:24:01,207 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:24:01,207 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:24:01,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:24:01 BoogieIcfgContainer [2020-07-21 01:24:01,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:24:01,242 INFO L168 Benchmark]: Toolchain (without parser) took 24751.49 ms. Allocated memory was 137.9 MB in the beginning and 575.1 MB in the end (delta: 437.3 MB). Free memory was 100.5 MB in the beginning and 423.6 MB in the end (delta: -323.1 MB). Peak memory consumption was 414.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:01,242 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 01:24:01,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.72 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.1 MB in the beginning and 169.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:01,244 INFO L168 Benchmark]: Boogie Preprocessor took 97.24 ms. Allocated memory is still 202.9 MB. Free memory was 169.6 MB in the beginning and 164.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:01,244 INFO L168 Benchmark]: RCFGBuilder took 1223.18 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 180.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:01,245 INFO L168 Benchmark]: TraceAbstraction took 22705.83 ms. Allocated memory was 235.4 MB in the beginning and 575.1 MB in the end (delta: 339.7 MB). Free memory was 180.0 MB in the beginning and 423.6 MB in the end (delta: -243.6 MB). Peak memory consumption was 396.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:01,250 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.72 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.1 MB in the beginning and 169.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.24 ms. Allocated memory is still 202.9 MB. Free memory was 169.6 MB in the beginning and 164.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1223.18 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 180.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22705.83 ms. Allocated memory was 235.4 MB in the beginning and 575.1 MB in the end (delta: 339.7 MB). Free memory was 180.0 MB in the beginning and 423.6 MB in the end (delta: -243.6 MB). Peak memory consumption was 396.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 535]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (((a11 == \old(a11) && 8 <= a17) && a28 <= 9) && a17 < 9)) || (a17 <= 7 && 9 <= a28)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || (((1 == a11 && 8 <= a17) && a28 <= 9) && a17 < 9)) || ((((1 == a19 && 1 == a11) && a28 < 11) && a17 < 9) && 1 == a25)) || (1 == a19 && a17 <= 7)) || !(7 == \old(a28))) || !(1 == a21)) || !(\old(a11) <= 0)) || ((((a11 == \old(a11) && a28 < 11) && a17 < 9) && 9 <= a28) && 1 == a25)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 749 SDtfs, 5371 SDslu, 743 SDs, 0 SdLazy, 9009 SolverSat, 1234 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3279 GetRequests, 3167 SyntacticMatches, 5 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2921occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 131 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 97 PreInvPairs, 147 NumberOfFragments, 773 HoareAnnotationTreeSize, 97 FomulaSimplifications, 1467 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3972 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1896 NumberOfCodeBlocks, 1103 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3210 ConstructedInterpolants, 0 QuantifiedInterpolants, 2028626 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3530 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1446/1490 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...