/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_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:25:22,105 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:25:22,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:25:22,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:25:22,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:25:22,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:25:22,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:25:22,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:25:22,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:25:22,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:25:22,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:25:22,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:25:22,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:25:22,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:25:22,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:25:22,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:25:22,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:25:22,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:25:22,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:25:22,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:25:22,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:25:22,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:25:22,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:25:22,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:25:22,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:25:22,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:25:22,154 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 01:25:22,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:25:22,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:25:22,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:25:22,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:25:22,171 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:25:22,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:25:22,172 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:25:22,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:25:22,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:25:22,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:25:22,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:25:22,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:25:22,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:25:22,173 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:25:22,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:25:22,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:25:22,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:25:22,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:25:22,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:25:22,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:25:22,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:25:22,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:25:22,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:25:22,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:25:22,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:25:22,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:25:22,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:22,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:25:22,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:25:22,176 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 01:25:22,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:25:22,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:25:22,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:25:22,458 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:25:22,458 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:25:22,459 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 01:25:22,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4722f6c79/d158fc60e8534ba788466b110cf172e6/FLAG598b943c4 [2020-07-21 01:25:23,067 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:25:23,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-21 01:25:23,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4722f6c79/d158fc60e8534ba788466b110cf172e6/FLAG598b943c4 [2020-07-21 01:25:23,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4722f6c79/d158fc60e8534ba788466b110cf172e6 [2020-07-21 01:25:23,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:25:23,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:25:23,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:25:23,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:25:23,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:25:23,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:25:23" (1/1) ... [2020-07-21 01:25:23,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:23, skipping insertion in model container [2020-07-21 01:25:23,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:25:23" (1/1) ... [2020-07-21 01:25:23,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:25:23,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:25:23,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:25:23,990 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:25:24,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:25:24,112 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:25:24,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24 WrapperNode [2020-07-21 01:25:24,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:25:24,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:25:24,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:25:24,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:25:24,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (1/1) ... [2020-07-21 01:25:24,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:25:24,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:25:24,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:25:24,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:25:24,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (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 01:25:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:25:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:25:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:25:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:25:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:25:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:25:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:25:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:25:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:25:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:25:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:25:25,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:25:25,347 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:25:25,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:25:25 BoogieIcfgContainer [2020-07-21 01:25:25,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:25:25,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:25:25,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:25:25,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:25:25,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:25:23" (1/3) ... [2020-07-21 01:25:25,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:25:25, skipping insertion in model container [2020-07-21 01:25:25,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:24" (2/3) ... [2020-07-21 01:25:25,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:25:25, skipping insertion in model container [2020-07-21 01:25:25,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:25:25" (3/3) ... [2020-07-21 01:25:25,361 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-21 01:25:25,372 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:25:25,379 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:25:25,393 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:25:25,418 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:25:25,418 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:25:25,419 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:25:25,419 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:25:25,419 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:25:25,419 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:25:25,419 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:25:25,420 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:25:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:25:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-21 01:25:25,462 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:25,463 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] [2020-07-21 01:25:25,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:25,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:25,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-21 01:25:25,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:25,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-21 01:25:25,478 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 01:25:25,682 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:25,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:25,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:25:25,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:26,016 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2020-07-21 01:25:26,269 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:26,280 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:25:26,280 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:25:26,379 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 01:25:26,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:26,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-21 01:25:26,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:26,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:25:26,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793907001] [2020-07-21 01:25:26,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:25:26,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:26,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:25:26,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:25:26,406 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:25:27,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:27,613 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:25:27,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:25:27,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-07-21 01:25:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:27,629 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:25:27,629 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:25:27,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:25:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:25:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:25:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:25:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:25:27,695 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 96 [2020-07-21 01:25:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:27,696 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:25:27,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:25:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:25:27,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-21 01:25:27,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:27,702 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] [2020-07-21 01:25:27,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:27,918 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:27,919 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-21 01:25:27,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:27,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776299474] [2020-07-21 01:25:27,921 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 01:25:28,034 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:28,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:28,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:25:28,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:28,569 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 01:25:28,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:28,962 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:25:28,964 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:28,965 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:25:28,966 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:28,967 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:28,987 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:25:28,987 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:29,021 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:29,082 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:29,178 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 01:25:29,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776299474] [2020-07-21 01:25:29,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:29,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:25:29,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981849119] [2020-07-21 01:25:29,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:25:29,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:29,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:25:29,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:25:29,183 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:25:30,206 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:25:31,324 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:25:31,577 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 01:25:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:32,907 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:25:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:25:32,908 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 105 [2020-07-21 01:25:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:32,920 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:25:32,921 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:25:32,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:25:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:25:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:25:32,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:25:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:25:33,004 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 105 [2020-07-21 01:25:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:33,004 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:25:33,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:25:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:25:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 01:25:33,011 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:33,012 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] [2020-07-21 01:25:33,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:33,230 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:33,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:33,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1995325114, now seen corresponding path program 1 times [2020-07-21 01:25:33,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:33,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987332866] [2020-07-21 01:25:33,231 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 01:25:33,306 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:25:33,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:33,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:25:33,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:33,343 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:25:33,344 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:33,370 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:33,413 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 01:25:33,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:33,506 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:33,507 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:33,534 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:33,586 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:33,590 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:33,607 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 01:25:33,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987332866] [2020-07-21 01:25:33,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:33,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:33,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866942973] [2020-07-21 01:25:33,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:33,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:33,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:33,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:33,612 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:25:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:35,304 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:25:35,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:25:35,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-07-21 01:25:35,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:35,312 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:25:35,312 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:25:35,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 233 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 01:25:35,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:25:35,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:25:35,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:25:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 01:25:35,360 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 117 [2020-07-21 01:25:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:35,360 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 01:25:35,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 01:25:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 01:25:35,365 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:35,365 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] [2020-07-21 01:25:35,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:35,580 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:35,581 INFO L82 PathProgramCache]: Analyzing trace with hash -417301807, now seen corresponding path program 1 times [2020-07-21 01:25:35,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:35,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442043095] [2020-07-21 01:25:35,582 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 01:25:35,692 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:25:35,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:35,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:35,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:35,740 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 01:25:35,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:35,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442043095] [2020-07-21 01:25:35,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:35,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:25:35,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630711018] [2020-07-21 01:25:35,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:25:35,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:35,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:25:35,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:25:35,743 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 01:25:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:36,337 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 01:25:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:25:36,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-21 01:25:36,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:36,356 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 01:25:36,357 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 01:25:36,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 01:25:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 01:25:36,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 01:25:36,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 01:25:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 01:25:36,413 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 138 [2020-07-21 01:25:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:36,413 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 01:25:36,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:25:36,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 01:25:36,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 01:25:36,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:36,419 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] [2020-07-21 01:25:36,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:36,633 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:36,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:36,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1299707378, now seen corresponding path program 1 times [2020-07-21 01:25:36,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:36,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814571597] [2020-07-21 01:25:36,634 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 01:25:36,746 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:36,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:36,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:36,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:36,784 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 01:25:36,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:36,852 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 01:25:36,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814571597] [2020-07-21 01:25:36,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:36,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:25:36,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262751977] [2020-07-21 01:25:36,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:25:36,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:36,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:25:36,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:25:36,855 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 01:25:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:37,763 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 01:25:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:25:37,764 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-07-21 01:25:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:37,771 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 01:25:37,771 INFO L226 Difference]: Without dead ends: 1278 [2020-07-21 01:25:37,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 277 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 01:25:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-07-21 01:25:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-07-21 01:25:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-07-21 01:25:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1566 transitions. [2020-07-21 01:25:37,818 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1566 transitions. Word has length 141 [2020-07-21 01:25:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:37,819 INFO L479 AbstractCegarLoop]: Abstraction has 1278 states and 1566 transitions. [2020-07-21 01:25:37,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:25:37,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1566 transitions. [2020-07-21 01:25:37,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 01:25:37,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:37,833 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] [2020-07-21 01:25:38,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:38,050 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:38,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1958573417, now seen corresponding path program 1 times [2020-07-21 01:25:38,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:38,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828726080] [2020-07-21 01:25:38,052 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 01:25:38,140 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:38,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:38,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:25:38,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:38,212 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 01:25:38,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:38,273 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 01:25:38,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828726080] [2020-07-21 01:25:38,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:38,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:38,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808424524] [2020-07-21 01:25:38,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:38,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:38,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:38,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:38,282 INFO L87 Difference]: Start difference. First operand 1278 states and 1566 transitions. Second operand 7 states. [2020-07-21 01:25:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:38,983 INFO L93 Difference]: Finished difference Result 3139 states and 4082 transitions. [2020-07-21 01:25:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:25:38,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2020-07-21 01:25:38,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:38,995 INFO L225 Difference]: With dead ends: 3139 [2020-07-21 01:25:38,995 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 01:25:38,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 289 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 01:25:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 01:25:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1879. [2020-07-21 01:25:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-07-21 01:25:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2254 transitions. [2020-07-21 01:25:39,049 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2254 transitions. Word has length 147 [2020-07-21 01:25:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:39,050 INFO L479 AbstractCegarLoop]: Abstraction has 1879 states and 2254 transitions. [2020-07-21 01:25:39,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:39,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2254 transitions. [2020-07-21 01:25:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 01:25:39,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:39,055 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] [2020-07-21 01:25:39,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:39,269 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:39,270 INFO L82 PathProgramCache]: Analyzing trace with hash -566774654, now seen corresponding path program 1 times [2020-07-21 01:25:39,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:39,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720294408] [2020-07-21 01:25:39,271 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 01:25:39,349 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:39,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:39,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:39,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:39,386 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 01:25:39,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:39,480 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 01:25:39,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720294408] [2020-07-21 01:25:39,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:39,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:39,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723293047] [2020-07-21 01:25:39,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:39,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:39,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:39,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:39,483 INFO L87 Difference]: Start difference. First operand 1879 states and 2254 transitions. Second operand 7 states. [2020-07-21 01:25:40,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:40,632 INFO L93 Difference]: Finished difference Result 4145 states and 5024 transitions. [2020-07-21 01:25:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:25:40,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-07-21 01:25:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:40,646 INFO L225 Difference]: With dead ends: 4145 [2020-07-21 01:25:40,647 INFO L226 Difference]: Without dead ends: 2326 [2020-07-21 01:25:40,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:25:40,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2020-07-21 01:25:40,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2312. [2020-07-21 01:25:40,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2020-07-21 01:25:40,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2568 transitions. [2020-07-21 01:25:40,732 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2568 transitions. Word has length 158 [2020-07-21 01:25:40,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:40,733 INFO L479 AbstractCegarLoop]: Abstraction has 2312 states and 2568 transitions. [2020-07-21 01:25:40,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2568 transitions. [2020-07-21 01:25:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-21 01:25:40,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:40,744 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:40,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:40,958 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:40,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1660611423, now seen corresponding path program 1 times [2020-07-21 01:25:40,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:40,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808580012] [2020-07-21 01:25:40,959 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 01:25:41,082 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:41,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:41,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:25:41,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:25:41,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:25:41,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808580012] [2020-07-21 01:25:41,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:41,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:41,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049305720] [2020-07-21 01:25:41,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:41,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:41,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:41,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:41,386 INFO L87 Difference]: Start difference. First operand 2312 states and 2568 transitions. Second operand 7 states. [2020-07-21 01:25:42,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:42,345 INFO L93 Difference]: Finished difference Result 5182 states and 5761 transitions. [2020-07-21 01:25:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:25:42,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-07-21 01:25:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:42,356 INFO L225 Difference]: With dead ends: 5182 [2020-07-21 01:25:42,357 INFO L226 Difference]: Without dead ends: 2930 [2020-07-21 01:25:42,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 426 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 01:25:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2020-07-21 01:25:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2921. [2020-07-21 01:25:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 01:25:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3162 transitions. [2020-07-21 01:25:42,429 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3162 transitions. Word has length 215 [2020-07-21 01:25:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:42,431 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3162 transitions. [2020-07-21 01:25:42,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3162 transitions. [2020-07-21 01:25:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-07-21 01:25:42,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:42,439 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] [2020-07-21 01:25:42,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:42,654 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1504178570, now seen corresponding path program 1 times [2020-07-21 01:25:42,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:42,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811621706] [2020-07-21 01:25:42,656 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 01:25:42,772 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:42,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:42,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:25:42,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:42,885 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 01:25:42,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:42,971 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 01:25:42,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811621706] [2020-07-21 01:25:42,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:42,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:42,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160211529] [2020-07-21 01:25:42,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:42,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:42,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:42,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:42,974 INFO L87 Difference]: Start difference. First operand 2921 states and 3162 transitions. Second operand 7 states. [2020-07-21 01:25:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:43,879 INFO L93 Difference]: Finished difference Result 3659 states and 3984 transitions. [2020-07-21 01:25:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:25:43,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-07-21 01:25:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:43,885 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 01:25:43,886 INFO L226 Difference]: Without dead ends: 1536 [2020-07-21 01:25:43,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 458 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 01:25:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2020-07-21 01:25:43,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1392. [2020-07-21 01:25:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2020-07-21 01:25:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1473 transitions. [2020-07-21 01:25:43,918 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1473 transitions. Word has length 231 [2020-07-21 01:25:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:43,918 INFO L479 AbstractCegarLoop]: Abstraction has 1392 states and 1473 transitions. [2020-07-21 01:25:43,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1473 transitions. [2020-07-21 01:25:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-07-21 01:25:43,923 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:43,923 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] [2020-07-21 01:25:44,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:44,138 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:44,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:44,139 INFO L82 PathProgramCache]: Analyzing trace with hash -784030955, now seen corresponding path program 1 times [2020-07-21 01:25:44,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:44,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744391899] [2020-07-21 01:25:44,140 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 01:25:44,268 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:25:44,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:44,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:44,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:44,346 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 01:25:44,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:44,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744391899] [2020-07-21 01:25:44,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:44,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:25:44,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97320099] [2020-07-21 01:25:44,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:25:44,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:44,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:25:44,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:25:44,349 INFO L87 Difference]: Start difference. First operand 1392 states and 1473 transitions. Second operand 3 states. [2020-07-21 01:25:44,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:44,786 INFO L93 Difference]: Finished difference Result 2867 states and 3056 transitions. [2020-07-21 01:25:44,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:25:44,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2020-07-21 01:25:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:44,791 INFO L225 Difference]: With dead ends: 2867 [2020-07-21 01:25:44,791 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:25:44,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 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 01:25:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:25:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:25:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:25:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:25:44,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 238 [2020-07-21 01:25:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:44,798 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:25:44,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:25:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:25:44,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:25:45,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:45,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:25:46,559 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 149 DAG size of output: 96 [2020-07-21 01:25:47,202 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2020-07-21 01:25:47,860 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 64 [2020-07-21 01:25:47,864 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:25:47,865 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 01:25:47,865 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:25:47,865 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,865 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,865 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,866 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,866 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,866 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:25:47,866 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:25:47,866 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:25:47,866 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:25:47,867 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:25:47,868 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:25:47,869 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,870 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:25:47,871 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,872 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:25:47,873 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:25:47,874 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,875 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:25:47,876 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,877 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:25:47,878 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:25:47,879 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,880 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,881 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (= ~a25~0 |old(~a25~0)|)) (.cse23 (= ~a11~0 |old(~a11~0)|)) (.cse10 (<= ~a28~0 |old(~a28~0)|)) (.cse12 (= ~a19~0 |old(~a19~0)|)) (.cse13 (< ~a17~0 9)) (.cse0 (<= |old(~a28~0)| ~a28~0)) (.cse14 (= 1 ~a25~0))) (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)) (.cse11 (= 1 ~a11~0)) (.cse17 (not (< 8 |old(~a28~0)|))) (.cse19 (not (= 1 |old(~a11~0)|))) (.cse5 (<= ~a11~0 |old(~a11~0)|)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse3 (not (= 1 |old(~a19~0)|))) (.cse22 (and .cse23 .cse10 .cse12 .cse13 .cse0 .cse14)) (.cse15 (not (= 1 |old(~a25~0)|))) (.cse18 (not (< |old(~a28~0)| 11))) (.cse21 (not (<= |old(~a28~0)| 9))) (.cse16 (not (< |old(~a17~0)| 9))) (.cse20 (and .cse10 .cse23 .cse12 .cse13 .cse0 .cse1)) (.cse8 (not (= 1 ~a21~0))) (.cse9 (not (<= |old(~a11~0)| 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 (and .cse10 .cse11 .cse12 .cse13 .cse0 .cse14) .cse15 .cse16 .cse17 .cse18 .cse19) (or .cse3 .cse4 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse7 .cse8 .cse6 .cse9) (or (not (<= |old(~a28~0)| 7)) .cse16 .cse20 .cse19) (or .cse3 .cse21 .cse16 (and .cse11 (<= ~a28~0 9) .cse12 .cse13 .cse0 .cse1) .cse17 .cse19) (or .cse5 .cse2 .cse8 .cse9) (or .cse3 .cse22 .cse15 .cse16 .cse8 .cse9) (or .cse22 .cse15 .cse16 .cse8 .cse9 .cse18) (or .cse21 .cse16 .cse20 .cse8 .cse9)))) [2020-07-21 01:25:47,881 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,881 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,881 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,881 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:25:47,881 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:25:47,881 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:25:47,882 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:25:47,883 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:25:47,884 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:47,885 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:25:47,886 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:25:47,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:25:47,888 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 01:25:47,888 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:25:47,888 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:25:47,888 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 01:25:47,888 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (<= ~a28~0 9)) (.cse7 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse5 (= 1 ~a11~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse6 (< ~a28~0 11)) (.cse2 (< ~a17~0 9)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse4 .cse2) (and .cse0 .cse5 .cse6 .cse2 .cse7 .cse3) (and .cse0 .cse5 .cse4 .cse2 .cse7) (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 .cse5 .cse2 (<= ~a28~0 7)) (and .cse1 .cse6 .cse2 .cse3))) [2020-07-21 01:25:47,888 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:25:47,888 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:25:47,889 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (<= ~a28~0 9)) (.cse7 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse5 (= 1 ~a11~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse6 (< ~a28~0 11)) (.cse2 (< ~a17~0 9)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse4 .cse2) (and .cse0 .cse5 .cse6 .cse2 .cse7 .cse3) (and .cse0 .cse5 .cse4 .cse2 .cse7) (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 .cse5 .cse2 (<= ~a28~0 7)) (and .cse1 .cse6 .cse2 .cse3))) [2020-07-21 01:25:47,889 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:25:47,889 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:25:47,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:25:47 BoogieIcfgContainer [2020-07-21 01:25:47,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:25:47,915 INFO L168 Benchmark]: Toolchain (without parser) took 24542.81 ms. Allocated memory was 137.9 MB in the beginning and 537.9 MB in the end (delta: 400.0 MB). Free memory was 100.6 MB in the beginning and 330.3 MB in the end (delta: -229.7 MB). Peak memory consumption was 379.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:47,916 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:25:47,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.06 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.2 MB in the beginning and 170.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:47,917 INFO L168 Benchmark]: Boogie Preprocessor took 106.70 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:47,918 INFO L168 Benchmark]: RCFGBuilder took 1132.35 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 165.8 MB in the beginning and 180.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:47,919 INFO L168 Benchmark]: TraceAbstraction took 22559.35 ms. Allocated memory was 236.5 MB in the beginning and 537.9 MB in the end (delta: 301.5 MB). Free memory was 180.7 MB in the beginning and 330.3 MB in the end (delta: -149.6 MB). Peak memory consumption was 360.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:47,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.06 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.2 MB in the beginning and 170.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.70 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1132.35 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 165.8 MB in the beginning and 180.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22559.35 ms. Allocated memory was 236.5 MB in the beginning and 537.9 MB in the end (delta: 301.5 MB). Free memory was 180.7 MB in the beginning and 330.3 MB in the end (delta: -149.6 MB). Peak memory consumption was 360.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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)) || !(7 == \old(a28))) || ((a11 == \old(a11) && a28 <= 9) && a17 < 9)) || (((((1 == a19 && 1 == a11) && a28 < 11) && a17 < 9) && 9 <= a28) && 1 == a25)) || ((((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 == a11 && a17 < 9) && a28 <= 7)) || (((a11 == \old(a11) && a28 < 11) && a17 < 9) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 860 SDtfs, 5126 SDslu, 803 SDs, 0 SdLazy, 9347 SolverSat, 1250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2752 GetRequests, 2640 SyntacticMatches, 5 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2921occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 275 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 104 PreInvPairs, 152 NumberOfFragments, 711 HoareAnnotationTreeSize, 104 FomulaSimplifications, 1850 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3639 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1586 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2683 ConstructedInterpolants, 0 QuantifiedInterpolants, 1537214 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3541 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1446/1490 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...