/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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:25:58,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:25:58,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:25:58,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:25:58,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:25:58,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:25:58,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:25:58,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:25:58,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:25:58,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:25:58,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:25:58,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:25:58,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:25:58,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:25:58,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:25:58,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:25:58,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:25:58,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:25:58,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:25:58,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:25:58,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:25:58,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:25:58,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:25:58,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:25:58,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:25:58,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:25:58,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:25:58,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:25:58,175 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 01:25:58,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:25:58,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:25:58,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:25:58,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:25:58,190 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:25:58,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:25:58,190 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:25:58,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:25:58,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:25:58,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:25:58,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:25:58,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:25:58,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:25:58,191 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:25:58,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:25:58,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:25:58,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:25:58,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:25:58,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:25:58,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:25:58,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:25:58,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:25:58,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:25:58,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:25:58,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:25:58,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:25:58,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:58,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:25:58,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:25:58,195 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 01:25:58,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:25:58,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:25:58,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:25:58,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:25:58,478 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:25:58,479 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 01:25:58,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd610475/5ef4dc551bd841a58a816cda3972a070/FLAG989dd656c [2020-07-21 01:25:59,002 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:25:59,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 01:25:59,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd610475/5ef4dc551bd841a58a816cda3972a070/FLAG989dd656c [2020-07-21 01:25:59,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd610475/5ef4dc551bd841a58a816cda3972a070 [2020-07-21 01:25:59,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:25:59,309 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:25:59,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:25:59,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:25:59,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:25:59,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:25:59" (1/1) ... [2020-07-21 01:25:59,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c98470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:59, skipping insertion in model container [2020-07-21 01:25:59,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:25:59" (1/1) ... [2020-07-21 01:25:59,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:25:59,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:25:59,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:25:59,814 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:26:00,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:00,049 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:26:00,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00 WrapperNode [2020-07-21 01:26:00,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:00,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:26:00,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:26:00,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:26:00,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (1/1) ... [2020-07-21 01:26:00,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:26:00,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:26:00,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:26:00,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:26:00,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (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 01:26:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:26:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:26:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:26:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:26:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:26:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:26:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:26:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:26:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:26:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:26:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:26:01,580 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:26:01,580 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:26:01,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:01 BoogieIcfgContainer [2020-07-21 01:26:01,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:26:01,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:26:01,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:26:01,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:26:01,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:25:59" (1/3) ... [2020-07-21 01:26:01,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1504303a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:01, skipping insertion in model container [2020-07-21 01:26:01,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:00" (2/3) ... [2020-07-21 01:26:01,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1504303a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:01, skipping insertion in model container [2020-07-21 01:26:01,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:01" (3/3) ... [2020-07-21 01:26:01,600 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-07-21 01:26:01,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:26:01,621 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:26:01,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:26:01,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:26:01,663 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:26:01,664 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:26:01,664 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:26:01,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:26:01,664 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:26:01,664 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:26:01,665 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:26:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:26:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 01:26:01,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:01,700 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] [2020-07-21 01:26:01,701 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:01,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-07-21 01:26:01,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:01,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984610487] [2020-07-21 01:26:01,716 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 01:26:01,889 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:26:01,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:01,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:26:01,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:02,496 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:02,505 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:26:02,507 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:26:02,618 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 01:26:02,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:02,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984610487] [2020-07-21 01:26:02,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:02,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:26:02,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875551558] [2020-07-21 01:26:02,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:26:02,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:02,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:26:02,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:26:02,640 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:26:04,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:04,035 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:26:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:26:04,037 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 116 [2020-07-21 01:26:04,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:04,052 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:26:04,052 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:26:04,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:26:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:26:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:26:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:26:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:26:04,121 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 116 [2020-07-21 01:26:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:04,122 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:26:04,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:26:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:26:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 01:26:04,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:04,127 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] [2020-07-21 01:26:04,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:04,343 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:04,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:04,344 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-07-21 01:26:04,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:04,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457411059] [2020-07-21 01:26:04,346 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 01:26:04,461 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:26:04,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:04,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:26:04,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:05,024 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 01:26:05,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:05,406 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:26:05,408 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:26:05,409 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:26:05,410 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:26:05,411 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:26:05,435 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:26:05,435 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:26:05,477 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:05,554 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:05,681 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 01:26:05,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457411059] [2020-07-21 01:26:05,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:05,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:26:05,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324335672] [2020-07-21 01:26:05,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:26:05,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:05,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:26:05,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:26:05,686 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:26:06,707 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:26:07,720 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:26:09,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:09,164 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:26:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:26:09,167 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 125 [2020-07-21 01:26:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:09,173 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:26:09,173 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:26:09,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 227 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 01:26:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:26:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:26:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:26:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:26:09,232 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 125 [2020-07-21 01:26:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:09,233 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:26:09,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:26:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:26:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 01:26:09,241 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:09,241 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] [2020-07-21 01:26:09,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:09,443 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:09,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:09,444 INFO L82 PathProgramCache]: Analyzing trace with hash -769077558, now seen corresponding path program 1 times [2020-07-21 01:26:09,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:09,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953206788] [2020-07-21 01:26:09,445 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 01:26:09,538 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:26:09,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:09,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:26:09,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:09,583 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:26:09,583 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:09,607 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:09,645 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 01:26:09,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:09,739 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:26:09,741 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:09,770 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:26:09,822 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:09,825 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:09,842 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 01:26:09,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953206788] [2020-07-21 01:26:09,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:09,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:09,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569376686] [2020-07-21 01:26:09,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:09,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:09,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:09,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:09,845 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:26:11,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:11,411 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:26:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:26:11,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-21 01:26:11,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:11,419 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:26:11,420 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:26:11,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 273 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 01:26:11,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:26:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:26:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:26:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 01:26:11,473 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 137 [2020-07-21 01:26:11,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:11,473 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 01:26:11,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:11,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 01:26:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 01:26:11,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:11,479 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] [2020-07-21 01:26:11,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:11,695 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:11,696 INFO L82 PathProgramCache]: Analyzing trace with hash 815995233, now seen corresponding path program 1 times [2020-07-21 01:26:11,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:11,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097628973] [2020-07-21 01:26:11,698 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 01:26:11,798 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:11,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:11,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:11,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:11,830 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 01:26:11,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:11,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097628973] [2020-07-21 01:26:11,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:11,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:11,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907348795] [2020-07-21 01:26:11,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:11,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:11,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:11,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:11,833 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 01:26:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:12,438 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 01:26:12,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:12,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-07-21 01:26:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:12,445 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 01:26:12,445 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 01:26:12,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 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 01:26:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 01:26:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 01:26:12,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 01:26:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 01:26:12,499 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 158 [2020-07-21 01:26:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:12,500 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 01:26:12,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 01:26:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 01:26:12,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:12,506 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] [2020-07-21 01:26:12,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:12,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:12,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:12,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1272993762, now seen corresponding path program 1 times [2020-07-21 01:26:12,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:12,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824196986] [2020-07-21 01:26:12,723 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 01:26:12,817 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:12,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:12,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:12,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:12,882 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 01:26:12,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:12,953 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 01:26:12,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824196986] [2020-07-21 01:26:12,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:12,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:26:12,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404910278] [2020-07-21 01:26:12,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:26:12,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:12,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:26:12,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:26:12,956 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 01:26:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:14,016 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 01:26:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:14,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-07-21 01:26:14,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:14,023 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 01:26:14,024 INFO L226 Difference]: Without dead ends: 1278 [2020-07-21 01:26:14,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 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 01:26:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-07-21 01:26:14,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-07-21 01:26:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-07-21 01:26:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1566 transitions. [2020-07-21 01:26:14,077 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1566 transitions. Word has length 161 [2020-07-21 01:26:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:14,078 INFO L479 AbstractCegarLoop]: Abstraction has 1278 states and 1566 transitions. [2020-07-21 01:26:14,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:26:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1566 transitions. [2020-07-21 01:26:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 01:26:14,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:14,090 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] [2020-07-21 01:26:14,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:14,305 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:14,306 INFO L82 PathProgramCache]: Analyzing trace with hash 611682855, now seen corresponding path program 1 times [2020-07-21 01:26:14,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:14,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885273906] [2020-07-21 01:26:14,307 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 01:26:14,393 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:14,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:14,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:14,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:14,476 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 01:26:14,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:14,533 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 01:26:14,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885273906] [2020-07-21 01:26:14,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:14,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:14,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042212852] [2020-07-21 01:26:14,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:14,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:14,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:14,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:14,536 INFO L87 Difference]: Start difference. First operand 1278 states and 1566 transitions. Second operand 7 states. [2020-07-21 01:26:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:15,274 INFO L93 Difference]: Finished difference Result 3139 states and 4082 transitions. [2020-07-21 01:26:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:15,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-07-21 01:26:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:15,290 INFO L225 Difference]: With dead ends: 3139 [2020-07-21 01:26:15,290 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 01:26:15,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 329 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 01:26:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 01:26:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1879. [2020-07-21 01:26:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-07-21 01:26:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2253 transitions. [2020-07-21 01:26:15,346 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2253 transitions. Word has length 167 [2020-07-21 01:26:15,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:15,346 INFO L479 AbstractCegarLoop]: Abstraction has 1879 states and 2253 transitions. [2020-07-21 01:26:15,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:15,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2253 transitions. [2020-07-21 01:26:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 01:26:15,351 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:15,352 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] [2020-07-21 01:26:15,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:15,566 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:15,567 INFO L82 PathProgramCache]: Analyzing trace with hash 2057670802, now seen corresponding path program 1 times [2020-07-21 01:26:15,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:15,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173965069] [2020-07-21 01:26:15,568 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 01:26:15,653 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:15,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:15,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:15,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:15,708 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 01:26:15,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:15,802 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 01:26:15,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173965069] [2020-07-21 01:26:15,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:15,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:15,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987806466] [2020-07-21 01:26:15,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:15,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:15,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:15,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:15,805 INFO L87 Difference]: Start difference. First operand 1879 states and 2253 transitions. Second operand 7 states. [2020-07-21 01:26:16,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:16,858 INFO L93 Difference]: Finished difference Result 5391 states and 6700 transitions. [2020-07-21 01:26:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:26:16,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-07-21 01:26:16,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:16,875 INFO L225 Difference]: With dead ends: 5391 [2020-07-21 01:26:16,876 INFO L226 Difference]: Without dead ends: 3572 [2020-07-21 01:26:16,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 352 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 01:26:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2020-07-21 01:26:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3571. [2020-07-21 01:26:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3571 states. [2020-07-21 01:26:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4237 transitions. [2020-07-21 01:26:16,967 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4237 transitions. Word has length 178 [2020-07-21 01:26:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:16,968 INFO L479 AbstractCegarLoop]: Abstraction has 3571 states and 4237 transitions. [2020-07-21 01:26:16,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4237 transitions. [2020-07-21 01:26:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 01:26:16,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:16,976 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:17,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:17,191 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:17,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash 810545344, now seen corresponding path program 1 times [2020-07-21 01:26:17,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:17,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545089260] [2020-07-21 01:26:17,192 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 01:26:17,301 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:17,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:17,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:17,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:26:17,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 99 proven. 12 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 01:26:17,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545089260] [2020-07-21 01:26:17,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:17,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:17,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32262379] [2020-07-21 01:26:17,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:17,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:17,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:17,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:17,544 INFO L87 Difference]: Start difference. First operand 3571 states and 4237 transitions. Second operand 7 states. [2020-07-21 01:26:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:18,547 INFO L93 Difference]: Finished difference Result 6463 states and 7631 transitions. [2020-07-21 01:26:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:26:18,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 01:26:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:18,560 INFO L225 Difference]: With dead ends: 6463 [2020-07-21 01:26:18,560 INFO L226 Difference]: Without dead ends: 2952 [2020-07-21 01:26:18,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:26:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2020-07-21 01:26:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2928. [2020-07-21 01:26:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2020-07-21 01:26:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 3198 transitions. [2020-07-21 01:26:18,624 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 3198 transitions. Word has length 198 [2020-07-21 01:26:18,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:18,624 INFO L479 AbstractCegarLoop]: Abstraction has 2928 states and 3198 transitions. [2020-07-21 01:26:18,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 3198 transitions. [2020-07-21 01:26:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-21 01:26:18,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:18,632 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, 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] [2020-07-21 01:26:18,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:18,846 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:18,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:18,846 INFO L82 PathProgramCache]: Analyzing trace with hash 123399608, now seen corresponding path program 1 times [2020-07-21 01:26:18,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:18,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788916815] [2020-07-21 01:26:18,847 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 01:26:18,944 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:18,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:18,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:18,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 01:26:18,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 01:26:19,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788916815] [2020-07-21 01:26:19,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:19,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:26:19,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404596568] [2020-07-21 01:26:19,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:26:19,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:19,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:26:19,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:26:19,137 INFO L87 Difference]: Start difference. First operand 2928 states and 3198 transitions. Second operand 6 states. [2020-07-21 01:26:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:19,886 INFO L93 Difference]: Finished difference Result 4455 states and 4874 transitions. [2020-07-21 01:26:19,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:19,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2020-07-21 01:26:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:19,896 INFO L225 Difference]: With dead ends: 4455 [2020-07-21 01:26:19,897 INFO L226 Difference]: Without dead ends: 2933 [2020-07-21 01:26:19,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 400 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:26:19,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-07-21 01:26:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2921. [2020-07-21 01:26:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 01:26:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3161 transitions. [2020-07-21 01:26:19,953 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3161 transitions. Word has length 202 [2020-07-21 01:26:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:19,953 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3161 transitions. [2020-07-21 01:26:19,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:26:19,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3161 transitions. [2020-07-21 01:26:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-21 01:26:19,961 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:19,962 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] [2020-07-21 01:26:20,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:20,176 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:20,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash 568944774, now seen corresponding path program 1 times [2020-07-21 01:26:20,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:20,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480214814] [2020-07-21 01:26:20,178 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 01:26:20,279 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:26:20,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:20,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:20,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:20,325 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 01:26:20,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:20,412 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 01:26:20,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480214814] [2020-07-21 01:26:20,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:20,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:20,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358033256] [2020-07-21 01:26:20,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:20,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:20,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:20,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:20,414 INFO L87 Difference]: Start difference. First operand 2921 states and 3161 transitions. Second operand 7 states. [2020-07-21 01:26:21,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:21,345 INFO L93 Difference]: Finished difference Result 3659 states and 3982 transitions. [2020-07-21 01:26:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:26:21,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-07-21 01:26:21,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:21,350 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 01:26:21,350 INFO L226 Difference]: Without dead ends: 1388 [2020-07-21 01:26:21,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 498 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 01:26:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-07-21 01:26:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2020-07-21 01:26:21,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-07-21 01:26:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1468 transitions. [2020-07-21 01:26:21,378 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1468 transitions. Word has length 251 [2020-07-21 01:26:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:21,379 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1468 transitions. [2020-07-21 01:26:21,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1468 transitions. [2020-07-21 01:26:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-07-21 01:26:21,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:21,384 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] [2020-07-21 01:26:21,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:21,598 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:21,598 INFO L82 PathProgramCache]: Analyzing trace with hash -540772443, now seen corresponding path program 1 times [2020-07-21 01:26:21,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:21,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009469821] [2020-07-21 01:26:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:21,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:21,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:21,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:21,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:21,765 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 01:26:21,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:21,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009469821] [2020-07-21 01:26:21,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:21,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:21,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661117754] [2020-07-21 01:26:21,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:21,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:21,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:21,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:21,767 INFO L87 Difference]: Start difference. First operand 1388 states and 1468 transitions. Second operand 3 states. [2020-07-21 01:26:22,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:22,181 INFO L93 Difference]: Finished difference Result 2859 states and 3046 transitions. [2020-07-21 01:26:22,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:22,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-07-21 01:26:22,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:22,183 INFO L225 Difference]: With dead ends: 2859 [2020-07-21 01:26:22,183 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:26:22,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 256 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 01:26:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:26:22,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:26:22,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:26:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:26:22,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2020-07-21 01:26:22,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:22,190 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:26:22,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:22,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:26:22,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:26:22,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:22,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:26:24,125 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 148 DAG size of output: 98 [2020-07-21 01:26:24,778 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 52 [2020-07-21 01:26:25,462 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2020-07-21 01:26:25,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:25,466 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 01:26:25,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:25,466 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,466 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,467 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,467 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,467 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,467 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:26:25,467 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:25,468 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:26:25,469 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:26:25,470 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,471 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:26:25,472 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,473 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:26:25,474 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,475 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:26:25,476 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:25,477 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:25,478 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:26:25,479 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:26:25,480 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:26:25,481 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,482 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:26:25,483 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:26:25,484 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:26:25,485 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:26:25,485 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,485 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,485 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,485 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (not (= 8 |old(~a17~0)|))) (.cse7 (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|)))) (.cse6 (= 8 ~a17~0)) (.cse5 (<= ~a11~0 |old(~a11~0)|)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse18 (not (<= |old(~a28~0)| 10))) (.cse21 (= 1 ~a11~0)) (.cse16 (<= ~a28~0 10)) (.cse17 (= 1 ~a25~0)) (.cse12 (= ~a11~0 |old(~a11~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse14 (< ~a17~0 9)) (.cse0 (<= |old(~a28~0)| ~a28~0)) (.cse1 (= ~a25~0 |old(~a25~0)|)) (.cse8 (not (= 1 ~a21~0))) (.cse9 (not (<= |old(~a11~0)| 0))) (.cse3 (not (= 1 |old(~a19~0)|))) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse20 (not (<= |old(~a28~0)| 9))) (.cse19 (not (= 1 |old(~a25~0)|))) (.cse10 (not (< |old(~a17~0)| 9))) (.cse15 (not (= 1 |old(~a11~0)|)))) (and (or (and (<= ~a17~0 |old(~a17~0)|) .cse0 .cse1) .cse2) (or .cse3 (not (= 10 |old(~a28~0)|)) .cse4 (and (= 1 ~a19~0) .cse5 (= 10 ~a28~0) .cse6) .cse7 .cse8 .cse9) (or .cse3 .cse4 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse7 .cse8 .cse6 .cse9) (or (not (<= |old(~a28~0)| 7)) .cse10 (and .cse11 .cse12 .cse13 .cse14 .cse0 .cse1) .cse15) (or (and .cse12 .cse16 .cse13 .cse14 .cse0 .cse17) .cse18 .cse19 .cse10 .cse8 .cse9) (or .cse3 .cse20 .cse10 (and .cse21 (<= ~a28~0 9) .cse13 .cse14 .cse0 .cse1) (not (< 8 |old(~a28~0)|)) .cse15) (or .cse5 .cse2 .cse8 .cse9) (or .cse3 (and .cse12 .cse11 .cse13 .cse14 .cse0 .cse17) .cse19 .cse10 .cse8 .cse9) (or .cse3 .cse18 .cse19 .cse10 (and .cse21 .cse16 .cse13 .cse14 .cse0 .cse17) .cse15) (or (and .cse12 .cse11 .cse13 .cse14 .cse0 .cse1) .cse20 .cse10 .cse8 .cse9) (or .cse3 .cse11 .cse20 .cse19 .cse10 .cse15))) [2020-07-21 01:26:25,485 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:26:25,486 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,487 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:26:25,488 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:25,489 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,490 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:26:25,491 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:25,492 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:26:25,493 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:26:25,493 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:25,493 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 01:26:25,493 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:26:25,493 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:25,493 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 (= 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 01:26:25,494 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse5 (<= ~a28~0 9)) (.cse0 (= 1 ~a19~0)) (.cse4 (<= ~a28~0 10)) (.cse3 (= 1 ~a25~0)) (.cse6 (= 1 ~a11~0)) (.cse2 (< ~a17~0 9))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse5 .cse2) (and .cse0 .cse6 .cse5 .cse2 (<= 9 ~a28~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (and .cse0 .cse6 .cse4 .cse2 .cse3) (and .cse6 .cse2 (<= ~a28~0 7)))) [2020-07-21 01:26:25,494 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:25,494 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:25,494 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse5 (<= ~a28~0 9)) (.cse0 (= 1 ~a19~0)) (.cse4 (<= ~a28~0 10)) (.cse3 (= 1 ~a25~0)) (.cse6 (= 1 ~a11~0)) (.cse2 (< ~a17~0 9))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse5 .cse2) (and .cse0 .cse6 .cse5 .cse2 (<= 9 ~a28~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~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))) (<= ~a17~0 7) (and .cse0 .cse6 .cse4 .cse2 .cse3) (and .cse6 .cse2 (<= ~a28~0 7)))) [2020-07-21 01:26:25,494 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:26:25,494 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:26:25,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:26:25 BoogieIcfgContainer [2020-07-21 01:26:25,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:26:25,519 INFO L168 Benchmark]: Toolchain (without parser) took 26212.02 ms. Allocated memory was 136.8 MB in the beginning and 575.7 MB in the end (delta: 438.8 MB). Free memory was 99.5 MB in the beginning and 142.1 MB in the end (delta: -42.5 MB). Peak memory consumption was 412.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:25,520 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:26:25,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.16 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 99.1 MB in the beginning and 168.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:25,522 INFO L168 Benchmark]: Boogie Preprocessor took 98.94 ms. Allocated memory is still 203.4 MB. Free memory was 168.5 MB in the beginning and 163.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:25,523 INFO L168 Benchmark]: RCFGBuilder took 1439.97 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 163.3 MB in the beginning and 179.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:25,524 INFO L168 Benchmark]: TraceAbstraction took 23924.65 ms. Allocated memory was 233.3 MB in the beginning and 575.7 MB in the end (delta: 342.4 MB). Free memory was 177.8 MB in the beginning and 142.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 394.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:25,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.16 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 99.1 MB in the beginning and 168.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.94 ms. Allocated memory is still 203.4 MB. Free memory was 168.5 MB in the beginning and 163.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1439.97 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 163.3 MB in the beginning and 179.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23924.65 ms. Allocated memory was 233.3 MB in the beginning and 575.7 MB in the end (delta: 342.4 MB). Free memory was 177.8 MB in the beginning and 142.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 394.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || (((a11 == \old(a11) && a28 <= 10) && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || ((a11 == \old(a11) && a28 <= 9) && a17 < 9)) || ((((1 == a19 && 1 == a11) && a28 <= 9) && a17 < 9) && 9 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || a17 <= 7) || ((((1 == a19 && 1 == a11) && a28 <= 10) && a17 < 9) && 1 == a25)) || ((1 == a11 && a17 < 9) && a28 <= 7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.7s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 899 SDtfs, 6095 SDslu, 897 SDs, 0 SdLazy, 10674 SolverSat, 1395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3424 GetRequests, 3306 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3571occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 145 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 123 PreInvPairs, 173 NumberOfFragments, 725 HoareAnnotationTreeSize, 123 FomulaSimplifications, 1835 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3832 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1951 NumberOfCodeBlocks, 1155 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3351 ConstructedInterpolants, 0 QuantifiedInterpolants, 1803882 SizeOfPredicates, 39 NumberOfNonLiveVariables, 3982 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 1720/1778 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...