/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:22:46,458 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:22:46,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:22:46,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:22:46,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:22:46,524 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 01:22:46,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:22:46,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:22:46,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:22:46,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:22:46,548 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:22:46,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:22:46,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:22:46,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:22:46,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:22:46,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:22:46,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:22:46,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:22:46,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:22:46,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:22:46,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:22:46,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:22:46,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:22:46,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:22:46,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:22:46,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:22:46,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:22:46,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:22:46,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:22:46,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:22:46,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:22:46,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:22:46,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:22:46,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:22:46,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:22:46,554 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 01:22:46,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:22:46,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:22:46,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:22:46,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:22:46,879 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:22:46,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label00.c [2020-07-21 01:22:46,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa21f248/d3f8947efb5b4659b6ed5e9d31f9d8b0/FLAG659055acb [2020-07-21 01:22:47,489 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:22:47,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label00.c [2020-07-21 01:22:47,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa21f248/d3f8947efb5b4659b6ed5e9d31f9d8b0/FLAG659055acb [2020-07-21 01:22:47,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa21f248/d3f8947efb5b4659b6ed5e9d31f9d8b0 [2020-07-21 01:22:47,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:22:47,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:22:47,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:22:47,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:22:47,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:22:47,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:22:47" (1/1) ... [2020-07-21 01:22:47,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662a784d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:47, skipping insertion in model container [2020-07-21 01:22:47,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:22:47" (1/1) ... [2020-07-21 01:22:47,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:22:47,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:22:48,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:22:48,399 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:22:48,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:22:48,533 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:22:48,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48 WrapperNode [2020-07-21 01:22:48,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:22:48,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:22:48,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:22:48,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:22:48,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (1/1) ... [2020-07-21 01:22:48,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:22:48,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:22:48,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:22:48,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:22:48,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (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 01:22:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:22:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:22:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:22:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:22:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:22:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:22:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:22:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:22:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:22:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:22:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:22:49,915 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:22:49,916 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:22:49,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:22:49 BoogieIcfgContainer [2020-07-21 01:22:49,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:22:49,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:22:49,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:22:49,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:22:49,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:22:47" (1/3) ... [2020-07-21 01:22:49,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aafa3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:22:49, skipping insertion in model container [2020-07-21 01:22:49,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:22:48" (2/3) ... [2020-07-21 01:22:49,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aafa3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:22:49, skipping insertion in model container [2020-07-21 01:22:49,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:22:49" (3/3) ... [2020-07-21 01:22:49,944 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label00.c [2020-07-21 01:22:49,956 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:22:49,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:22:49,991 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:22:50,027 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:22:50,028 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:22:50,028 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:22:50,028 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:22:50,028 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:22:50,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:22:50,029 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:22:50,029 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:22:50,055 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:22:50,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 01:22:50,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:22:50,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:22:50,081 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:22:50,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:22:50,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1022555377, now seen corresponding path program 1 times [2020-07-21 01:22:50,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:22:50,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129702041] [2020-07-21 01:22:50,099 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 01:22:50,327 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:22:50,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:22:50,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:22:50,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:22:50,676 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2020-07-21 01:22:50,954 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:22:50,959 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:22:50,959 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:22:51,049 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 01:22:51,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:22:51,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129702041] [2020-07-21 01:22:51,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:22:51,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:22:51,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772467428] [2020-07-21 01:22:51,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:22:51,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:22:51,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:22:51,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:22:51,076 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:22:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:22:52,285 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:22:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:22:52,287 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-07-21 01:22:52,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:22:52,301 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:22:52,301 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:22:52,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:22:52,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:22:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:22:52,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:22:52,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:22:52,372 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 121 [2020-07-21 01:22:52,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:22:52,373 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:22:52,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:22:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:22:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 01:22:52,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:22:52,377 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:22:52,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:22:52,592 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:22:52,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:22:52,593 INFO L82 PathProgramCache]: Analyzing trace with hash 2100655392, now seen corresponding path program 1 times [2020-07-21 01:22:52,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:22:52,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50527912] [2020-07-21 01:22:52,594 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 01:22:52,699 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:22:52,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:22:52,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:22:52,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:22:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:22:53,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:22:53,650 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:22:53,652 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:22:53,654 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:22:53,655 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:22:53,656 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:22:53,687 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:22:53,687 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:22:53,729 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:22:53,806 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:22:53,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:22:53,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50527912] [2020-07-21 01:22:53,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:22:53,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:22:53,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872784432] [2020-07-21 01:22:53,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:22:53,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:22:53,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:22:53,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:22:53,942 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:22:54,893 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:22:55,989 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:22:57,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:22:57,427 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:22:57,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:22:57,428 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 130 [2020-07-21 01:22:57,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:22:57,443 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:22:57,443 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:22:57,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 237 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:22:57,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:22:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:22:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:22:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:22:57,517 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 130 [2020-07-21 01:22:57,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:22:57,517 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:22:57,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:22:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:22:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 01:22:57,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:22:57,525 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:22:57,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:22:57,742 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:22:57,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:22:57,743 INFO L82 PathProgramCache]: Analyzing trace with hash 775043565, now seen corresponding path program 1 times [2020-07-21 01:22:57,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:22:57,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222071466] [2020-07-21 01:22:57,744 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 01:22:57,869 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:22:57,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:22:57,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:22:57,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:22:57,892 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:22:57,892 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:22:57,915 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:22:57,931 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 01:22:57,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:22:58,014 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:22:58,015 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:22:58,044 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:22:58,095 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:22:58,099 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:22:58,119 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 01:22:58,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222071466] [2020-07-21 01:22:58,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:22:58,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:22:58,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227828126] [2020-07-21 01:22:58,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:22:58,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:22:58,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:22:58,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:22:58,122 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:22:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:22:59,765 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:22:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:22:59,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-07-21 01:22:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:22:59,773 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:22:59,774 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:22:59,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:22:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:22:59,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:22:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:22:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 01:22:59,841 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 142 [2020-07-21 01:22:59,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:22:59,841 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 01:22:59,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:22:59,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 01:22:59,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 01:22:59,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:22:59,852 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:00,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:00,066 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:00,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:00,067 INFO L82 PathProgramCache]: Analyzing trace with hash 339867062, now seen corresponding path program 1 times [2020-07-21 01:23:00,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:00,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662230919] [2020-07-21 01:23:00,068 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:00,219 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:00,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:00,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:00,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:00,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:00,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662230919] [2020-07-21 01:23:00,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:00,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:00,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573281196] [2020-07-21 01:23:00,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:00,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:00,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:00,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:00,265 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 01:23:00,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:00,908 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 01:23:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:00,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 01:23:00,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:00,920 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 01:23:00,920 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 01:23:00,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:00,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 01:23:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 01:23:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 01:23:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 01:23:00,975 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 163 [2020-07-21 01:23:00,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:00,977 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 01:23:00,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 01:23:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 01:23:00,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:00,983 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:01,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:01,198 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:01,198 INFO L82 PathProgramCache]: Analyzing trace with hash -252570343, now seen corresponding path program 1 times [2020-07-21 01:23:01,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:01,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333518852] [2020-07-21 01:23:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:01,305 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:01,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:01,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:01,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:01,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:01,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333518852] [2020-07-21 01:23:01,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:01,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:23:01,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595556101] [2020-07-21 01:23:01,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:23:01,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:01,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:23:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:23:01,450 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 01:23:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:02,475 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 01:23:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:02,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-07-21 01:23:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:02,484 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 01:23:02,485 INFO L226 Difference]: Without dead ends: 1426 [2020-07-21 01:23:02,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-07-21 01:23:02,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2020-07-21 01:23:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-07-21 01:23:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1745 transitions. [2020-07-21 01:23:02,543 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1745 transitions. Word has length 166 [2020-07-21 01:23:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:02,544 INFO L479 AbstractCegarLoop]: Abstraction has 1426 states and 1745 transitions. [2020-07-21 01:23:02,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:23:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1745 transitions. [2020-07-21 01:23:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 01:23:02,549 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:02,549 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:02,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:02,764 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:02,764 INFO L82 PathProgramCache]: Analyzing trace with hash 609554608, now seen corresponding path program 1 times [2020-07-21 01:23:02,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:02,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238853053] [2020-07-21 01:23:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:02,878 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:02,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:02,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:02,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:02,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:02,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238853053] [2020-07-21 01:23:02,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:02,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:02,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749468511] [2020-07-21 01:23:02,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:02,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:02,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:02,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:02,999 INFO L87 Difference]: Start difference. First operand 1426 states and 1745 transitions. Second operand 7 states. [2020-07-21 01:23:03,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:03,864 INFO L93 Difference]: Finished difference Result 3441 states and 4492 transitions. [2020-07-21 01:23:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:03,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-07-21 01:23:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:03,884 INFO L225 Difference]: With dead ends: 3441 [2020-07-21 01:23:03,884 INFO L226 Difference]: Without dead ends: 2075 [2020-07-21 01:23:03,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2020-07-21 01:23:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2029. [2020-07-21 01:23:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2029 states. [2020-07-21 01:23:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2436 transitions. [2020-07-21 01:23:03,956 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2436 transitions. Word has length 172 [2020-07-21 01:23:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:03,956 INFO L479 AbstractCegarLoop]: Abstraction has 2029 states and 2436 transitions. [2020-07-21 01:23:03,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2436 transitions. [2020-07-21 01:23:03,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 01:23:03,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:03,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:04,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:04,167 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:04,168 INFO L82 PathProgramCache]: Analyzing trace with hash 533681445, now seen corresponding path program 1 times [2020-07-21 01:23:04,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:04,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849288710] [2020-07-21 01:23:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:04,263 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:04,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:04,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:04,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:04,311 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:04,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:04,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849288710] [2020-07-21 01:23:04,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:04,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:04,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947371485] [2020-07-21 01:23:04,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:04,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:04,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:04,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:04,391 INFO L87 Difference]: Start difference. First operand 2029 states and 2436 transitions. Second operand 7 states. [2020-07-21 01:23:05,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:05,556 INFO L93 Difference]: Finished difference Result 4443 states and 5397 transitions. [2020-07-21 01:23:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:23:05,557 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-07-21 01:23:05,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:05,568 INFO L225 Difference]: With dead ends: 4443 [2020-07-21 01:23:05,568 INFO L226 Difference]: Without dead ends: 2474 [2020-07-21 01:23:05,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:23:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2020-07-21 01:23:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2460. [2020-07-21 01:23:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-07-21 01:23:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 2725 transitions. [2020-07-21 01:23:05,635 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 2725 transitions. Word has length 183 [2020-07-21 01:23:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:05,635 INFO L479 AbstractCegarLoop]: Abstraction has 2460 states and 2725 transitions. [2020-07-21 01:23:05,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 2725 transitions. [2020-07-21 01:23:05,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 01:23:05,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:05,643 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:05,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:05,858 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:05,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:05,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1780418022, now seen corresponding path program 1 times [2020-07-21 01:23:05,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:05,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963450721] [2020-07-21 01:23:05,860 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:05,986 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:05,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:05,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:05,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:06,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:06,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963450721] [2020-07-21 01:23:06,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:06,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:06,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058582019] [2020-07-21 01:23:06,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:06,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:06,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:06,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:06,161 INFO L87 Difference]: Start difference. First operand 2460 states and 2725 transitions. Second operand 7 states. [2020-07-21 01:23:07,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:07,182 INFO L93 Difference]: Finished difference Result 5480 states and 6079 transitions. [2020-07-21 01:23:07,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:07,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-07-21 01:23:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:07,195 INFO L225 Difference]: With dead ends: 5480 [2020-07-21 01:23:07,195 INFO L226 Difference]: Without dead ends: 2930 [2020-07-21 01:23:07,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2020-07-21 01:23:07,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2921. [2020-07-21 01:23:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 01:23:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3161 transitions. [2020-07-21 01:23:07,264 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3161 transitions. Word has length 240 [2020-07-21 01:23:07,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:07,265 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3161 transitions. [2020-07-21 01:23:07,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:07,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3161 transitions. [2020-07-21 01:23:07,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-07-21 01:23:07,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:07,275 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:07,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:07,489 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:07,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:07,489 INFO L82 PathProgramCache]: Analyzing trace with hash 213407153, now seen corresponding path program 1 times [2020-07-21 01:23:07,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:07,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533264462] [2020-07-21 01:23:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:07,584 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:23:07,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:07,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:07,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-07-21 01:23:07,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:07,788 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 156 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 01:23:07,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533264462] [2020-07-21 01:23:07,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:07,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:07,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193698541] [2020-07-21 01:23:07,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:07,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:07,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:07,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:07,792 INFO L87 Difference]: Start difference. First operand 2921 states and 3161 transitions. Second operand 7 states. [2020-07-21 01:23:08,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:08,731 INFO L93 Difference]: Finished difference Result 3659 states and 3982 transitions. [2020-07-21 01:23:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:23:08,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-07-21 01:23:08,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:08,737 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 01:23:08,738 INFO L226 Difference]: Without dead ends: 1388 [2020-07-21 01:23:08,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:08,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-07-21 01:23:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2020-07-21 01:23:08,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-07-21 01:23:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1468 transitions. [2020-07-21 01:23:08,773 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1468 transitions. Word has length 256 [2020-07-21 01:23:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:08,782 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1468 transitions. [2020-07-21 01:23:08,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:08,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1468 transitions. [2020-07-21 01:23:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 01:23:08,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:08,788 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:09,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:09,003 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:09,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:09,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1923816974, now seen corresponding path program 1 times [2020-07-21 01:23:09,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:09,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772897999] [2020-07-21 01:23:09,004 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:09,155 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:09,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:09,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:09,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 01:23:09,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:09,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772897999] [2020-07-21 01:23:09,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:09,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:09,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898114195] [2020-07-21 01:23:09,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:09,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:09,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:09,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:09,227 INFO L87 Difference]: Start difference. First operand 1388 states and 1468 transitions. Second operand 3 states. [2020-07-21 01:23:09,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:09,468 INFO L93 Difference]: Finished difference Result 1388 states and 1468 transitions. [2020-07-21 01:23:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:09,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-07-21 01:23:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:09,470 INFO L225 Difference]: With dead ends: 1388 [2020-07-21 01:23:09,470 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:23:09,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:23:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:23:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:23:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:23:09,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2020-07-21 01:23:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:09,476 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:23:09,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:23:09,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:23:09,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:09,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:23:11,405 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 146 DAG size of output: 106 [2020-07-21 01:23:11,958 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 53 [2020-07-21 01:23:12,528 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 64 [2020-07-21 01:23:12,532 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:12,532 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:23:12,532 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:23:12,533 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:23:12,534 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:23:12,534 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:23:12,534 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:23:12,534 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:23:12,534 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:23:12,534 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,535 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:23:12,536 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:12,537 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 517) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:12,538 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:23:12,539 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:23:12,540 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:23:12,541 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:23:12,542 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:23:12,543 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,544 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,545 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:23:12,546 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,547 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:23:12,548 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,549 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:23:12,550 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,551 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,552 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse23 (= 1 |old(~a25~0)|)) (.cse10 (not (= 1 ~a21~0)))) (let ((.cse18 (= 1 ~a11~0)) (.cse12 (not (< |old(~a28~0)| 11))) (.cse20 (not (= 1 |old(~a11~0)|))) (.cse22 (<= ~a11~0 |old(~a11~0)|)) (.cse19 (not (< 8 |old(~a28~0)|))) (.cse14 (<= ~a17~0 |old(~a17~0)|)) (.cse15 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse10)) (.cse17 (not (<= |old(~a17~0)| 7))) (.cse24 (not (<= 9 |old(~a28~0)|))) (.cse16 (not (<= |old(~a28~0)| 9))) (.cse0 (not (<= 8 |old(~a17~0)|))) (.cse5 (<= 8 ~a17~0)) (.cse21 (= ~a25~0 |old(~a25~0)|)) (.cse13 (not (= 1 |old(~a19~0)|))) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 |old(~a28~0)|)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (< ~a17~0 9)) (.cse8 (<= |old(~a28~0)| ~a28~0)) (.cse9 (= 1 ~a25~0)) (.cse1 (not .cse23)) (.cse2 (not (< |old(~a17~0)| 9))) (.cse11 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) .cse10 .cse11 .cse12) (or .cse13 (and .cse14 .cse4 .cse6 .cse15 .cse8 .cse9) .cse16 .cse1 .cse17) (or .cse13 .cse16 .cse2 (and .cse18 (<= ~a28~0 9) .cse6) .cse19 .cse20) (or .cse16 .cse0 .cse2 (and .cse4 .cse3 .cse5 .cse6 .cse7 .cse8 .cse21) .cse20) (or .cse13 (not (= 10 |old(~a28~0)|)) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse22 (= 10 ~a28~0) (= 8 ~a17~0)) (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse10 .cse11) (or .cse13 (and .cse4 .cse18 .cse6 .cse7 .cse8 .cse9) .cse1 .cse2 .cse12 .cse20) (or .cse22 (and .cse23 (not (< 9 |old(~a28~0)|))) .cse17 .cse19 .cse10 .cse11) (or .cse24 (and .cse14 .cse15 .cse8 .cse21) .cse17) (or .cse13 .cse24 .cse3 .cse16 .cse1 .cse2 .cse10 .cse11) (or .cse16 .cse0 .cse2 .cse10 .cse11 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse21)) (or .cse13 (and .cse3 .cse4 .cse6 .cse7 .cse8 .cse9) .cse1 .cse2 (not (<= 11 |old(~a28~0)|)) .cse10 .cse11)))) [2020-07-21 01:23:12,552 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,552 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,552 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,552 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:23:12,552 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:23:12,553 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:23:12,554 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:23:12,555 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,556 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:23:12,557 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:12,558 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:23:12,559 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:12,559 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:12,559 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:23:12,559 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:23:12,559 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:12,559 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:23:12,559 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:23:12,559 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:12,560 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (< |old(~a17~0)| 9)) (not (= 7 |old(~a28~0)|)) (and (= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:23:12,560 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse9 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse5 (<= 9 ~a28~0)) (.cse6 (= 1 ~a19~0)) (.cse4 (<= ~a17~0 7)) (.cse7 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5) (and .cse6 .cse0 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3) (and .cse6 .cse8 .cse9 .cse3 .cse7) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse9 .cse3 .cse5 .cse7) (and .cse6 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse6 .cse4 .cse7))) [2020-07-21 01:23:12,560 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:12,560 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:12,560 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse9 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse5 (<= 9 ~a28~0)) (.cse6 (= 1 ~a19~0)) (.cse4 (<= ~a17~0 7)) (.cse7 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5) (and .cse6 .cse0 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3) (and .cse6 .cse8 .cse9 .cse3 .cse7) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse9 .cse3 .cse5 .cse7) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse6 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))) (and .cse6 .cse4 .cse7))) [2020-07-21 01:23:12,561 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:23:12,561 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:23:12,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:23:12 BoogieIcfgContainer [2020-07-21 01:23:12,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:23:12,586 INFO L168 Benchmark]: Toolchain (without parser) took 24793.88 ms. Allocated memory was 138.4 MB in the beginning and 525.9 MB in the end (delta: 387.4 MB). Free memory was 101.6 MB in the beginning and 408.0 MB in the end (delta: -306.4 MB). Peak memory consumption was 403.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:12,587 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:23:12,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.00 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 101.2 MB in the beginning and 172.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:12,589 INFO L168 Benchmark]: Boogie Preprocessor took 118.37 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:12,589 INFO L168 Benchmark]: RCFGBuilder took 1277.96 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.4 MB in the beginning and 182.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:12,590 INFO L168 Benchmark]: TraceAbstraction took 22651.17 ms. Allocated memory was 238.6 MB in the beginning and 525.9 MB in the end (delta: 287.3 MB). Free memory was 182.6 MB in the beginning and 408.0 MB in the end (delta: -225.4 MB). Peak memory consumption was 384.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:12,594 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.00 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 101.2 MB in the beginning and 172.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.37 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.96 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.4 MB in the beginning and 182.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22651.17 ms. Allocated memory was 238.6 MB in the beginning and 525.9 MB in the end (delta: 287.3 MB). Free memory was 182.6 MB in the beginning and 408.0 MB in the end (delta: -225.4 MB). Peak memory consumption was 384.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 517]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (((a11 == \old(a11) && 8 <= a17) && a28 <= 9) && a17 < 9)) || (a17 <= 7 && 9 <= a28)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || (((1 == a11 && 8 <= a17) && a28 <= 9) && a17 < 9)) || ((((1 == a19 && 1 == a11) && a28 < 11) && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || !(1 == a21)) || !(\old(a11) <= 0)) || ((((a11 == \old(a11) && a28 < 11) && a17 < 9) && 9 <= a28) && 1 == a25)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || ((1 == a19 && a17 <= 7) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 749 SDtfs, 5483 SDslu, 765 SDs, 0 SdLazy, 9011 SolverSat, 1218 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3177 GetRequests, 3065 SyntacticMatches, 5 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2921occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 135 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 98 PreInvPairs, 146 NumberOfFragments, 789 HoareAnnotationTreeSize, 98 FomulaSimplifications, 1471 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3993 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1836 NumberOfCodeBlocks, 1129 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 3108 ConstructedInterpolants, 0 QuantifiedInterpolants, 1930364 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3581 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1446/1490 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...