/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/Problem01_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:20:25,077 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:20:25,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:20:25,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:20:25,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:20:25,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:20:25,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:20:25,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:20:25,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:20:25,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:20:25,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:20:25,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:20:25,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:20:25,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:20:25,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:20:25,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:20:25,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:20:25,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:20:25,126 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 01:20:25,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:20:25,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:20:25,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:20:25,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:20:25,144 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:20:25,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:20:25,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:20:25,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:20:25,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:20:25,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:20:25,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:20:25,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:20:25,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:20:25,146 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:20:25,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:20:25,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:20:25,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:20:25,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:20:25,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:20:25,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:20:25,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:20:25,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:20:25,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:20:25,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:20:25,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:20:25,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:20:25,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:25,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:20:25,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:20:25,150 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 01:20:25,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:20:25,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:20:25,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:20:25,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:20:25,466 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:20:25,467 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-07-21 01:20:25,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f2e8fc1/e601f0e3fae94b1a8b5e23a68ca772cf/FLAG74a30f63e [2020-07-21 01:20:26,096 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:20:26,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-07-21 01:20:26,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f2e8fc1/e601f0e3fae94b1a8b5e23a68ca772cf/FLAG74a30f63e [2020-07-21 01:20:26,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f2e8fc1/e601f0e3fae94b1a8b5e23a68ca772cf [2020-07-21 01:20:26,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:20:26,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:20:26,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:20:26,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:20:26,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:20:26,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:20:26" (1/1) ... [2020-07-21 01:20:26,387 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 01:20:26, skipping insertion in model container [2020-07-21 01:20:26,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:20:26" (1/1) ... [2020-07-21 01:20:26,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:20:26,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:20:26,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:20:26,922 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:20:27,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:20:27,039 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:20:27,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27 WrapperNode [2020-07-21 01:20:27,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:20:27,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:20:27,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:20:27,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:20:27,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (1/1) ... [2020-07-21 01:20:27,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:20:27,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:20:27,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:20:27,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:20:27,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (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 01:20:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:20:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:20:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:20:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:20:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:20:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:20:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:20:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:20:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:20:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:20:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:20:28,346 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:20:28,346 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:20:28,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:20:28 BoogieIcfgContainer [2020-07-21 01:20:28,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:20:28,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:20:28,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:20:28,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:20:28,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:20:26" (1/3) ... [2020-07-21 01:20:28,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a7f8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:20:28, skipping insertion in model container [2020-07-21 01:20:28,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:27" (2/3) ... [2020-07-21 01:20:28,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a7f8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:20:28, skipping insertion in model container [2020-07-21 01:20:28,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:20:28" (3/3) ... [2020-07-21 01:20:28,361 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2020-07-21 01:20:28,372 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:20:28,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:20:28,394 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:20:28,420 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:20:28,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:20:28,421 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:20:28,421 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:20:28,421 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:20:28,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:20:28,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:20:28,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:20:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:20:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-21 01:20:28,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:28,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:28,460 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:28,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:28,467 INFO L82 PathProgramCache]: Analyzing trace with hash 92920350, now seen corresponding path program 1 times [2020-07-21 01:20:28,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:28,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196923968] [2020-07-21 01:20:28,477 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 01:20:28,689 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:28,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:28,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:20:28,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:29,019 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:20:29,165 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:20:29,579 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 01:20:29,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:29,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196923968] [2020-07-21 01:20:29,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:29,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:20:29,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163946383] [2020-07-21 01:20:29,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:20:29,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:29,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:20:29,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:20:29,610 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:20:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:31,339 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:20:31,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:20:31,340 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-07-21 01:20:31,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:31,353 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:20:31,354 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:20:31,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:20:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:20:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:20:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:20:31,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:20:31,420 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 108 [2020-07-21 01:20:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:31,420 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:20:31,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:20:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:20:31,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 01:20:31,425 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:31,425 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:31,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:31,639 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:31,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1860356217, now seen corresponding path program 1 times [2020-07-21 01:20:31,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:31,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125984723] [2020-07-21 01:20:31,641 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 01:20:31,755 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:31,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:31,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:20:31,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:32,413 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:20:32,417 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:20:32,418 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:20:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:32,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:33,201 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:20:33,353 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:20:33,512 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:20:33,659 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:20:33,665 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:20:33,666 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:20:33,668 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:20:33,669 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:20:33,671 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,672 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:20:33,676 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:20:33,677 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:20:33,678 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,686 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,688 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,690 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:20:33,691 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:33,692 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:33,693 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:33,697 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,698 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:33,700 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,701 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:33,702 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:33,703 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:33,709 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:33,710 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:33,712 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:33,713 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:34,330 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:20:34,333 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:20:34,334 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:34,419 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:34,421 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:34,487 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:34,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:34,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125984723] [2020-07-21 01:20:34,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:34,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:20:34,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866201818] [2020-07-21 01:20:34,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:20:34,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:34,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:20:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:20:34,734 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:20:35,746 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:20:36,316 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:20:36,630 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:20:37,160 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:20:37,388 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:20:37,835 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:20:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:40,367 INFO L93 Difference]: Finished difference Result 590 states and 879 transitions. [2020-07-21 01:20:40,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:20:40,369 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 116 [2020-07-21 01:20:40,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:40,376 INFO L225 Difference]: With dead ends: 590 [2020-07-21 01:20:40,377 INFO L226 Difference]: Without dead ends: 453 [2020-07-21 01:20:40,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 204 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:20:40,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-21 01:20:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 417. [2020-07-21 01:20:40,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:20:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 549 transitions. [2020-07-21 01:20:40,427 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 549 transitions. Word has length 116 [2020-07-21 01:20:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:40,428 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 549 transitions. [2020-07-21 01:20:40,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:20:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 549 transitions. [2020-07-21 01:20:40,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 01:20:40,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:40,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:40,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:40,647 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash 871696247, now seen corresponding path program 1 times [2020-07-21 01:20:40,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:40,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171523298] [2020-07-21 01:20:40,650 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 01:20:40,787 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:20:40,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:40,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:40,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:40,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:40,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171523298] [2020-07-21 01:20:40,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:40,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:20:40,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987627206] [2020-07-21 01:20:40,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:20:40,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:40,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:20:40,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:40,819 INFO L87 Difference]: Start difference. First operand 417 states and 549 transitions. Second operand 3 states. [2020-07-21 01:20:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:41,394 INFO L93 Difference]: Finished difference Result 1042 states and 1436 transitions. [2020-07-21 01:20:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:20:41,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-21 01:20:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:41,401 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 01:20:41,401 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 01:20:41,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 01:20:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 01:20:41,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 01:20:41,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 01:20:41,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 898 transitions. [2020-07-21 01:20:41,437 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 898 transitions. Word has length 119 [2020-07-21 01:20:41,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:41,438 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 898 transitions. [2020-07-21 01:20:41,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:20:41,438 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 898 transitions. [2020-07-21 01:20:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 01:20:41,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:41,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:41,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:41,656 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:41,657 INFO L82 PathProgramCache]: Analyzing trace with hash 179939970, now seen corresponding path program 1 times [2020-07-21 01:20:41,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:41,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49156665] [2020-07-21 01:20:41,659 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 01:20:41,744 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:41,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:41,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:20:41,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:41,777 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 01:20:41,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:41,830 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 01:20:41,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49156665] [2020-07-21 01:20:41,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:41,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:20:41,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915460903] [2020-07-21 01:20:41,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:20:41,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:41,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:20:41,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:20:41,833 INFO L87 Difference]: Start difference. First operand 691 states and 898 transitions. Second operand 6 states. [2020-07-21 01:20:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:42,624 INFO L93 Difference]: Finished difference Result 1620 states and 2190 transitions. [2020-07-21 01:20:42,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:20:42,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-21 01:20:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:42,633 INFO L225 Difference]: With dead ends: 1620 [2020-07-21 01:20:42,633 INFO L226 Difference]: Without dead ends: 995 [2020-07-21 01:20:42,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:20:42,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2020-07-21 01:20:42,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 973. [2020-07-21 01:20:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2020-07-21 01:20:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1268 transitions. [2020-07-21 01:20:42,687 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1268 transitions. Word has length 128 [2020-07-21 01:20:42,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:42,691 INFO L479 AbstractCegarLoop]: Abstraction has 973 states and 1268 transitions. [2020-07-21 01:20:42,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:20:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1268 transitions. [2020-07-21 01:20:42,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 01:20:42,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:42,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:42,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:42,913 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:42,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:42,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2007497610, now seen corresponding path program 1 times [2020-07-21 01:20:42,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:42,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046839043] [2020-07-21 01:20:42,915 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 01:20:42,995 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:42,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:42,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:20:42,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:43,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:43,262 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:43,311 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:20:43,311 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:43,312 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:43,312 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:43,313 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 1] term [2020-07-21 01:20:43,314 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:43,315 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:43,316 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:43,317 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:43,317 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:43,318 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:43,319 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:43,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046839043] [2020-07-21 01:20:43,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:43,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:43,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306342451] [2020-07-21 01:20:43,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:43,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:43,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:43,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:43,435 INFO L87 Difference]: Start difference. First operand 973 states and 1268 transitions. Second operand 7 states. [2020-07-21 01:20:44,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:44,817 INFO L93 Difference]: Finished difference Result 2491 states and 3253 transitions. [2020-07-21 01:20:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:20:44,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-07-21 01:20:44,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:44,825 INFO L225 Difference]: With dead ends: 2491 [2020-07-21 01:20:44,826 INFO L226 Difference]: Without dead ends: 1304 [2020-07-21 01:20:44,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:20:44,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-07-21 01:20:44,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1241. [2020-07-21 01:20:44,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-07-21 01:20:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1468 transitions. [2020-07-21 01:20:44,867 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1468 transitions. Word has length 134 [2020-07-21 01:20:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:44,868 INFO L479 AbstractCegarLoop]: Abstraction has 1241 states and 1468 transitions. [2020-07-21 01:20:44,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1468 transitions. [2020-07-21 01:20:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 01:20:44,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:44,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:45,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:45,086 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:45,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1140646021, now seen corresponding path program 1 times [2020-07-21 01:20:45,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:45,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209283491] [2020-07-21 01:20:45,088 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 01:20:45,232 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:45,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:45,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 71 conjunts are in the unsatisfiable core [2020-07-21 01:20:45,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:45,607 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-07-21 01:20:45,931 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:20:45,932 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:20:45,932 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:20:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:46,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:46,639 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 01:20:46,784 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 01:20:46,795 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-07-21 01:20:46,796 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:20:46,797 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,798 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:20:46,799 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:20:46,800 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,803 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,804 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,805 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,806 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,807 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,808 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,809 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,809 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,810 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,812 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,813 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,813 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,815 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,816 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:46,817 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,817 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,818 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,820 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,821 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,821 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,822 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,824 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,825 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,826 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,827 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,827 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,828 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,830 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,831 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,831 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,833 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,833 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,834 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,836 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,837 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,838 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,839 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,839 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,840 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,841 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,842 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,843 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,844 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,845 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,846 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,846 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,848 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,849 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,849 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,851 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,852 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,853 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,854 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,855 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:20:46,855 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,856 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,857 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,858 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,859 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,859 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,861 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,861 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,862 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,864 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,864 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,865 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:46,866 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:20:46,867 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:20:46,867 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:47,775 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 38 [2020-07-21 01:20:47,778 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 1] term [2020-07-21 01:20:47,778 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:47,871 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:47,872 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:20:47,952 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:20:48,002 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:20:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:48,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209283491] [2020-07-21 01:20:48,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:48,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2020-07-21 01:20:48,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628393469] [2020-07-21 01:20:48,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:20:48,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:48,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:20:48,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:20:48,167 INFO L87 Difference]: Start difference. First operand 1241 states and 1468 transitions. Second operand 25 states. [2020-07-21 01:20:49,922 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-07-21 01:20:50,212 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-07-21 01:20:50,624 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-07-21 01:20:51,005 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-07-21 01:20:51,239 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-07-21 01:20:51,486 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-07-21 01:20:51,740 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-07-21 01:20:52,186 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-07-21 01:20:52,453 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-07-21 01:20:52,833 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-07-21 01:20:53,108 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-07-21 01:20:53,509 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-07-21 01:20:54,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:54,687 INFO L93 Difference]: Finished difference Result 2709 states and 3267 transitions. [2020-07-21 01:20:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-21 01:20:54,691 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 149 [2020-07-21 01:20:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:54,700 INFO L225 Difference]: With dead ends: 2709 [2020-07-21 01:20:54,701 INFO L226 Difference]: Without dead ends: 1500 [2020-07-21 01:20:54,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 272 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2020-07-21 01:20:54,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2020-07-21 01:20:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1433. [2020-07-21 01:20:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1433 states. [2020-07-21 01:20:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1679 transitions. [2020-07-21 01:20:54,759 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1679 transitions. Word has length 149 [2020-07-21 01:20:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:54,760 INFO L479 AbstractCegarLoop]: Abstraction has 1433 states and 1679 transitions. [2020-07-21 01:20:54,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:20:54,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1679 transitions. [2020-07-21 01:20:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 01:20:54,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:54,765 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, 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] [2020-07-21 01:20:54,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:54,981 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:54,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:54,982 INFO L82 PathProgramCache]: Analyzing trace with hash -702208640, now seen corresponding path program 1 times [2020-07-21 01:20:54,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:54,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847851259] [2020-07-21 01:20:54,984 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 01:20:55,098 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:20:55,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:55,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:20:55,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 46 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:20:55,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:20:55,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847851259] [2020-07-21 01:20:55,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:55,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-21 01:20:55,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954143399] [2020-07-21 01:20:55,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:20:55,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:55,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:20:55,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:20:55,246 INFO L87 Difference]: Start difference. First operand 1433 states and 1679 transitions. Second operand 6 states. [2020-07-21 01:20:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:56,127 INFO L93 Difference]: Finished difference Result 2271 states and 2704 transitions. [2020-07-21 01:20:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:20:56,129 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-07-21 01:20:56,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:56,142 INFO L225 Difference]: With dead ends: 2271 [2020-07-21 01:20:56,142 INFO L226 Difference]: Without dead ends: 2269 [2020-07-21 01:20:56,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:20:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2020-07-21 01:20:56,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 1709. [2020-07-21 01:20:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1709 states. [2020-07-21 01:20:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2010 transitions. [2020-07-21 01:20:56,206 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2010 transitions. Word has length 166 [2020-07-21 01:20:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:56,207 INFO L479 AbstractCegarLoop]: Abstraction has 1709 states and 2010 transitions. [2020-07-21 01:20:56,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:20:56,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2010 transitions. [2020-07-21 01:20:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 01:20:56,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:56,213 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:56,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:56,428 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:56,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:56,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1179185997, now seen corresponding path program 1 times [2020-07-21 01:20:56,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:56,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776412893] [2020-07-21 01:20:56,429 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 01:20:56,539 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:56,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:56,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 01:20:56,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:56,568 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:20:56,568 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:20:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:20:56,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:56,849 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:56,907 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:56,908 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:20:56,908 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:56,909 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:56,910 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:56,910 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:56,911 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:56,911 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:56,957 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:57,017 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:57,019 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:57,156 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:20:57,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776412893] [2020-07-21 01:20:57,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:57,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 01:20:57,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114676004] [2020-07-21 01:20:57,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:20:57,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:57,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:20:57,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:20:57,159 INFO L87 Difference]: Start difference. First operand 1709 states and 2010 transitions. Second operand 8 states. [2020-07-21 01:20:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:58,096 INFO L93 Difference]: Finished difference Result 3646 states and 4400 transitions. [2020-07-21 01:20:58,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:20:58,097 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-07-21 01:20:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:58,107 INFO L225 Difference]: With dead ends: 3646 [2020-07-21 01:20:58,107 INFO L226 Difference]: Without dead ends: 2183 [2020-07-21 01:20:58,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:20:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2020-07-21 01:20:58,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2126. [2020-07-21 01:20:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2020-07-21 01:20:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2507 transitions. [2020-07-21 01:20:58,173 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2507 transitions. Word has length 181 [2020-07-21 01:20:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:58,173 INFO L479 AbstractCegarLoop]: Abstraction has 2126 states and 2507 transitions. [2020-07-21 01:20:58,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:20:58,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2507 transitions. [2020-07-21 01:20:58,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 01:20:58,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:58,180 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:58,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:58,393 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:58,393 INFO L82 PathProgramCache]: Analyzing trace with hash 780692072, now seen corresponding path program 1 times [2020-07-21 01:20:58,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:58,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071423018] [2020-07-21 01:20:58,394 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 01:20:58,530 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:58,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:58,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:20:58,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 01:20:58,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:58,810 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:58,858 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:58,858 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:58,859 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:58,859 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:58,860 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:58,860 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 01:20:58,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071423018] [2020-07-21 01:20:58,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:58,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:58,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732820458] [2020-07-21 01:20:58,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:58,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:58,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:58,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:58,985 INFO L87 Difference]: Start difference. First operand 2126 states and 2507 transitions. Second operand 7 states. [2020-07-21 01:21:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:00,306 INFO L93 Difference]: Finished difference Result 5388 states and 6474 transitions. [2020-07-21 01:21:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:21:00,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-07-21 01:21:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:00,322 INFO L225 Difference]: With dead ends: 5388 [2020-07-21 01:21:00,322 INFO L226 Difference]: Without dead ends: 3508 [2020-07-21 01:21:00,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:21:00,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2020-07-21 01:21:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 2958. [2020-07-21 01:21:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2958 states. [2020-07-21 01:21:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 3401 transitions. [2020-07-21 01:21:00,398 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 3401 transitions. Word has length 200 [2020-07-21 01:21:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:00,398 INFO L479 AbstractCegarLoop]: Abstraction has 2958 states and 3401 transitions. [2020-07-21 01:21:00,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:21:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 3401 transitions. [2020-07-21 01:21:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-07-21 01:21:00,407 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:00,407 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-21 01:21:00,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:00,621 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:00,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:00,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2030424408, now seen corresponding path program 1 times [2020-07-21 01:21:00,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:00,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223430615] [2020-07-21 01:21:00,622 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 01:21:00,759 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:21:00,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:00,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:21:00,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 149 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 01:21:00,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 134 proven. 28 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 01:21:00,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223430615] [2020-07-21 01:21:00,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:00,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:21:00,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714417127] [2020-07-21 01:21:00,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:21:00,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:00,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:21:00,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:21:00,931 INFO L87 Difference]: Start difference. First operand 2958 states and 3401 transitions. Second operand 6 states. [2020-07-21 01:21:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:01,762 INFO L93 Difference]: Finished difference Result 6097 states and 7048 transitions. [2020-07-21 01:21:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:21:01,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2020-07-21 01:21:01,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:01,776 INFO L225 Difference]: With dead ends: 6097 [2020-07-21 01:21:01,776 INFO L226 Difference]: Without dead ends: 3385 [2020-07-21 01:21:01,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 458 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:21:01,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2020-07-21 01:21:01,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2692. [2020-07-21 01:21:01,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-07-21 01:21:01,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3056 transitions. [2020-07-21 01:21:01,846 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3056 transitions. Word has length 232 [2020-07-21 01:21:01,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:01,846 INFO L479 AbstractCegarLoop]: Abstraction has 2692 states and 3056 transitions. [2020-07-21 01:21:01,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:21:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3056 transitions. [2020-07-21 01:21:01,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-21 01:21:01,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:01,854 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:02,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:02,070 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:02,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1079906807, now seen corresponding path program 1 times [2020-07-21 01:21:02,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:02,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840095024] [2020-07-21 01:21:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:02,220 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:21:02,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:02,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:21:02,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:02,304 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:21:02,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:02,519 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:21:02,568 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:21:02,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:02,569 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:21:02,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:02,570 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:02,571 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:02,571 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:02,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:02,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:02,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:02,574 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 01:21:02,574 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:21:02,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840095024] [2020-07-21 01:21:02,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:02,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:21:02,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070418315] [2020-07-21 01:21:02,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:21:02,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:02,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:21:02,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:21:02,703 INFO L87 Difference]: Start difference. First operand 2692 states and 3056 transitions. Second operand 7 states. [2020-07-21 01:21:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:04,004 INFO L93 Difference]: Finished difference Result 6669 states and 7735 transitions. [2020-07-21 01:21:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:21:04,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-07-21 01:21:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:04,022 INFO L225 Difference]: With dead ends: 6669 [2020-07-21 01:21:04,022 INFO L226 Difference]: Without dead ends: 4225 [2020-07-21 01:21:04,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:21:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4225 states. [2020-07-21 01:21:04,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4225 to 4086. [2020-07-21 01:21:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4086 states. [2020-07-21 01:21:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 4644 transitions. [2020-07-21 01:21:04,122 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 4644 transitions. Word has length 237 [2020-07-21 01:21:04,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:04,123 INFO L479 AbstractCegarLoop]: Abstraction has 4086 states and 4644 transitions. [2020-07-21 01:21:04,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:21:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 4644 transitions. [2020-07-21 01:21:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 01:21:04,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:04,164 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:21:04,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:04,372 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:04,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:04,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1103094990, now seen corresponding path program 1 times [2020-07-21 01:21:04,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:04,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414768109] [2020-07-21 01:21:04,374 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:04,531 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:21:04,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:04,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:21:04,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:04,579 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:21:04,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:21:04,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414768109] [2020-07-21 01:21:04,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:21:04,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:21:04,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503597227] [2020-07-21 01:21:04,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:21:04,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:04,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:21:04,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:21:04,581 INFO L87 Difference]: Start difference. First operand 4086 states and 4644 transitions. Second operand 3 states. [2020-07-21 01:21:05,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:05,105 INFO L93 Difference]: Finished difference Result 6252 states and 7127 transitions. [2020-07-21 01:21:05,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:21:05,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-07-21 01:21:05,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:05,115 INFO L225 Difference]: With dead ends: 6252 [2020-07-21 01:21:05,116 INFO L226 Difference]: Without dead ends: 2414 [2020-07-21 01:21:05,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 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 01:21:05,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2020-07-21 01:21:05,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2279. [2020-07-21 01:21:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2279 states. [2020-07-21 01:21:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2504 transitions. [2020-07-21 01:21:05,168 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2504 transitions. Word has length 250 [2020-07-21 01:21:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:05,169 INFO L479 AbstractCegarLoop]: Abstraction has 2279 states and 2504 transitions. [2020-07-21 01:21:05,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:21:05,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2504 transitions. [2020-07-21 01:21:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-07-21 01:21:05,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:05,181 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:05,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:05,394 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:05,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1842631411, now seen corresponding path program 1 times [2020-07-21 01:21:05,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:05,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803824893] [2020-07-21 01:21:05,395 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:05,612 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:21:05,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:05,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:21:05,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-07-21 01:21:05,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:21:05,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803824893] [2020-07-21 01:21:05,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:21:05,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:21:05,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635906455] [2020-07-21 01:21:05,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:21:05,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:05,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:21:05,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:21:05,766 INFO L87 Difference]: Start difference. First operand 2279 states and 2504 transitions. Second operand 3 states. [2020-07-21 01:21:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:06,277 INFO L93 Difference]: Finished difference Result 4623 states and 5107 transitions. [2020-07-21 01:21:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:21:06,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2020-07-21 01:21:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:06,283 INFO L225 Difference]: With dead ends: 4623 [2020-07-21 01:21:06,283 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:21:06,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 320 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 01:21:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:21:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:21:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:21:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:21:06,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 322 [2020-07-21 01:21:06,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:06,293 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:21:06,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:21:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:21:06,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:21:06,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:06,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:21:07,191 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 163 [2020-07-21 01:21:07,392 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 165 [2020-07-21 01:21:09,308 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 239 DAG size of output: 116 [2020-07-21 01:21:10,241 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 54 [2020-07-21 01:21:11,081 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-07-21 01:21:11,085 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:21:11,086 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (< 0 |old(~a7~0)|) (not (= 1 |old(~a21~0)|)) (= 15 ~a8~0) (not (= 8 ~a12~0))) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:21:11,086 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:21:11,086 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:21:11,086 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:21:11,086 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,087 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,087 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,087 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,087 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,087 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,087 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:21:11,088 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:21:11,089 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 482) no Hoare annotation was computed. [2020-07-21 01:21:11,090 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:21:11,091 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:21:11,092 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:21:11,093 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:21:11,094 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,095 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:21:11,096 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:21:11,097 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:21:11,098 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:21:11,099 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse25 (= 1 |old(~a21~0)|))) (let ((.cse18 (= 8 ~a12~0)) (.cse1 (not (= 1 |old(~a20~0)|))) (.cse2 (not (= 15 |old(~a8~0)|))) (.cse4 (not .cse25)) (.cse28 (= 15 ~a8~0)) (.cse24 (= 1 |old(~a17~0)|)) (.cse20 (<= ~a16~0 |old(~a16~0)|)) (.cse10 (= ~a7~0 |old(~a7~0)|)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse14 (<= |old(~a8~0)| ~a8~0)) (.cse15 (= 1 ~a21~0)) (.cse16 (= ~a20~0 |old(~a20~0)|))) (let ((.cse23 (not (= 1 |old(~a7~0)|))) (.cse26 (and .cse20 .cse10 .cse11 .cse14 .cse15 .cse16)) (.cse27 (not (<= |old(~a16~0)| 4))) (.cse6 (= 5 ~a16~0)) (.cse0 (not (= 5 |old(~a16~0)|))) (.cse19 (not .cse24)) (.cse3 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse8 (not (<= |old(~a20~0)| 0))) (.cse9 (not (< 13 |old(~a8~0)|))) (.cse22 (not (<= 6 |old(~a16~0)|))) (.cse12 (< 13 ~a8~0)) (.cse21 (<= 6 ~a16~0)) (.cse13 (<= ~a7~0 0)) (.cse17 (or .cse1 .cse2 .cse4 .cse28)) (.cse5 (not .cse18))) (and (or .cse0 .cse1 (not (< |old(~a17~0)| 1)) .cse2 (not (< |old(~a7~0)| 1)) .cse3 .cse4 .cse5 .cse6) (or .cse7 (not (<= |old(~a16~0)| 5)) .cse8 .cse9 .cse4 (and .cse10 .cse11 .cse12 .cse13 .cse14 (<= ~a16~0 5) .cse15 .cse16 .cse17 .cse18) .cse5) (or .cse1 .cse0 .cse2 .cse7 .cse19 .cse3 .cse4 .cse6 .cse5) (or (and .cse20 .cse10 .cse11 .cse21 .cse14 .cse15 .cse16) .cse1 .cse7 .cse19 .cse4 .cse22 .cse5) (or .cse23 (and .cse24 .cse4) .cse21 (and .cse19 .cse25) .cse22) (or .cse1 .cse7 .cse9 .cse4 .cse5 (and .cse20 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse1 .cse21 .cse7 .cse9 .cse4 .cse22 .cse5) (or .cse7 .cse26 .cse8 .cse27 .cse4 .cse5) (or .cse23 (and .cse20 (= 1 ~a7~0) .cse11 .cse14 .cse16 (= ~a21~0 |old(~a21~0)|))) (or .cse1 .cse7 .cse26 .cse27 .cse4 .cse5) (or (and .cse28 .cse6) .cse0 .cse2 .cse7 .cse19 .cse8 .cse3 .cse4 .cse5) (or .cse7 .cse8 .cse9 .cse4 .cse22 (and .cse20 .cse10 .cse11 .cse12 .cse21 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) .cse5))))) [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:21:11,100 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,101 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:21:11,102 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,103 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:21:11,104 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:21:11,105 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:21:11,105 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:21:11,105 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:21:11,105 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:21:11,105 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:21:11,105 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:21:11,105 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:21:11,105 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 5 ~a16~0)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:21:11,106 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:21:11,106 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (not (= 1 |old(~a7~0)|))) (.cse6 (<= ~a16~0 4)) (.cse0 (< 13 ~a8~0)) (.cse7 (<= ~a20~0 0)) (.cse1 (<= ~a7~0 0)) (.cse2 (= 1 ~a21~0)) (.cse3 (= 1 ~a20~0)) (.cse4 (= 8 ~a12~0))) (or (not (= 5 |old(~a16~0)|)) (= 1 ~a7~0) (not (= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (and .cse5 .cse1 .cse2 .cse3 .cse6 .cse4) (not (= 1 |old(~a20~0)|)) (and .cse5 .cse1 .cse2 .cse7 .cse6 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and (<= 6 ~a16~0) .cse1 (= 1 ~a17~0) .cse2 .cse3) (not .cse4))) [2020-07-21 01:21:11,106 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:21:11,106 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:21:11,106 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (not (= 1 |old(~a7~0)|))) (.cse6 (<= ~a16~0 4)) (.cse0 (< 13 ~a8~0)) (.cse7 (<= ~a20~0 0)) (.cse1 (<= ~a7~0 0)) (.cse2 (= 1 ~a21~0)) (.cse3 (= 1 ~a20~0)) (.cse4 (= 8 ~a12~0))) (or (not (= 5 |old(~a16~0)|)) (= 1 ~a7~0) (not (= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (and .cse5 .cse1 .cse2 .cse3 .cse6 .cse4) (not (= 1 |old(~a20~0)|)) (and .cse5 .cse1 .cse2 .cse7 .cse6 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and (<= 6 ~a16~0) .cse1 (= 1 ~a17~0) .cse2 .cse3) (not .cse4))) [2020-07-21 01:21:11,106 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:21:11,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:21:11 BoogieIcfgContainer [2020-07-21 01:21:11,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:21:11,135 INFO L168 Benchmark]: Toolchain (without parser) took 44758.70 ms. Allocated memory was 139.5 MB in the beginning and 598.2 MB in the end (delta: 458.8 MB). Free memory was 102.1 MB in the beginning and 168.2 MB in the end (delta: -66.1 MB). Peak memory consumption was 478.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:11,135 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 01:21:11,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.60 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.7 MB in the beginning and 170.5 MB in the end (delta: -68.8 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:11,140 INFO L168 Benchmark]: Boogie Preprocessor took 107.62 ms. Allocated memory is still 205.0 MB. Free memory was 170.5 MB in the beginning and 165.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:11,140 INFO L168 Benchmark]: RCFGBuilder took 1203.68 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 165.6 MB in the beginning and 179.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:11,141 INFO L168 Benchmark]: TraceAbstraction took 42779.35 ms. Allocated memory was 239.1 MB in the beginning and 598.2 MB in the end (delta: 359.1 MB). Free memory was 178.4 MB in the beginning and 168.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 455.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:11,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.60 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.7 MB in the beginning and 170.5 MB in the end (delta: -68.8 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.62 ms. Allocated memory is still 205.0 MB. Free memory was 170.5 MB in the beginning and 165.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1203.68 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 165.6 MB in the beginning and 179.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42779.35 ms. Allocated memory was 239.1 MB in the beginning and 598.2 MB in the end (delta: 359.1 MB). Free memory was 178.4 MB in the beginning and 168.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 455.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 482]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((!(5 == \old(a16)) || 1 == a7) || !(15 == \old(a8))) || ((((13 < a8 && a7 <= 0) && 1 == a21) && 1 == a20) && 8 == a12)) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a21) && 1 == a20) && a16 <= 4) && 8 == a12)) || !(1 == \old(a20))) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a21) && a20 <= 0) && a16 <= 4) && 8 == a12)) || !(1 == \old(a21))) || ((((13 < a8 && a7 <= 0) && 1 == a21) && a20 <= 0) && 8 == a12)) || ((((6 <= a16 && a7 <= 0) && 1 == a17) && 1 == a21) && 1 == a20)) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.0s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 898 SDtfs, 5792 SDslu, 719 SDs, 0 SdLazy, 13984 SolverSat, 1313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3970 GetRequests, 3788 SyntacticMatches, 13 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4086occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 2322 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 165 PreInvPairs, 211 NumberOfFragments, 942 HoareAnnotationTreeSize, 165 FomulaSimplifications, 15385 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17742 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 2342 NumberOfCodeBlocks, 1693 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3863 ConstructedInterpolants, 0 QuantifiedInterpolants, 5477128 SizeOfPredicates, 87 NumberOfNonLiveVariables, 5475 ConjunctsInSsa, 276 ConjunctsInUnsatCore, 22 InterpolantComputations, 4 PerfectInterpolantSequences, 2172/2363 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...