/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_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:25:19,793 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:25:19,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:25:19,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:25:19,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:25:19,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:25:19,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:25:19,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:25:19,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:25:19,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:25:19,860 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:25:19,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:25:19,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:25:19,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:25:19,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:25:19,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:25:19,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:25:19,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:25:19,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:25:19,862 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:25:19,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:25:19,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:25:19,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:25:19,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:25:19,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:25:19,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:25:19,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:25:19,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:25:19,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:25:19,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:25:19,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:25:19,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:25:19,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:19,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:25:19,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:25:19,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:25:20,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:25:20,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:25:20,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:25:20,175 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:25:20,175 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:25:20,176 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label36.c [2020-07-21 01:25:20,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638e17b42/c25fa388828f4a93919bb53368b4a198/FLAGaac1f6bc5 [2020-07-21 01:25:20,760 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:25:20,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label36.c [2020-07-21 01:25:20,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638e17b42/c25fa388828f4a93919bb53368b4a198/FLAGaac1f6bc5 [2020-07-21 01:25:20,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638e17b42/c25fa388828f4a93919bb53368b4a198 [2020-07-21 01:25:21,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:25:21,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:25:21,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:25:21,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:25:21,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:25:21,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:25:20" (1/1) ... [2020-07-21 01:25:21,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62802491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21, skipping insertion in model container [2020-07-21 01:25:21,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:25:20" (1/1) ... [2020-07-21 01:25:21,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:25:21,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:25:21,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:25:21,535 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:25:21,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:25:21,809 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:25:21,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21 WrapperNode [2020-07-21 01:25:21,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:25:21,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:25:21,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:25:21,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:25:21,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... [2020-07-21 01:25:21,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:25:21,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:25:21,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:25:21,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:25:21,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:25:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:25:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:25:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:25:22,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:25:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:25:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:25:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:25:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:25:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:25:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:25:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:25:23,152 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:25:23,152 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:25:23,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:25:23 BoogieIcfgContainer [2020-07-21 01:25:23,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:25:23,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:25:23,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:25:23,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:25:23,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:25:20" (1/3) ... [2020-07-21 01:25:23,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:25:23, skipping insertion in model container [2020-07-21 01:25:23,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:25:21" (2/3) ... [2020-07-21 01:25:23,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:25:23, skipping insertion in model container [2020-07-21 01:25:23,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:25:23" (3/3) ... [2020-07-21 01:25:23,174 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label36.c [2020-07-21 01:25:23,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:25:23,196 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:25:23,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:25:23,246 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:25:23,247 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:25:23,247 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:25:23,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:25:23,248 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:25:23,248 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:25:23,248 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:25:23,248 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:25:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:25:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 01:25:23,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:23,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:23,305 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:23,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1783412414, now seen corresponding path program 1 times [2020-07-21 01:25:23,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:23,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759099204] [2020-07-21 01:25:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:23,515 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:23,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:23,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:25:23,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:23,839 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2020-07-21 01:25:24,115 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:24,124 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:25:24,125 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:25:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:24,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:24,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759099204] [2020-07-21 01:25:24,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:24,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:25:24,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942212225] [2020-07-21 01:25:24,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:25:24,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:24,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:25:24,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:25:24,279 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:25:25,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:25,512 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:25:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:25:25,514 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 138 [2020-07-21 01:25:25,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:25,536 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:25:25,536 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:25:25,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:25:25,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:25:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:25:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:25:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:25:25,655 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 138 [2020-07-21 01:25:25,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:25,656 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:25:25,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:25:25,656 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:25:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 01:25:25,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:25,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:25,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:25,884 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:25,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:25,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2116205167, now seen corresponding path program 1 times [2020-07-21 01:25:25,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:25,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784924804] [2020-07-21 01:25:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:26,012 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:26,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:26,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:25:26,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:26,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:26,913 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:25:26,915 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:26,916 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:25:26,917 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:26,918 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:26,937 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:25:26,938 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:26,972 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:27,048 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:27,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784924804] [2020-07-21 01:25:27,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:27,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:25:27,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182540523] [2020-07-21 01:25:27,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:25:27,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:27,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:25:27,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:25:27,185 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:25:28,271 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:25:29,432 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:25:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:30,947 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 01:25:30,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:25:30,949 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 147 [2020-07-21 01:25:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:30,958 INFO L225 Difference]: With dead ends: 740 [2020-07-21 01:25:30,959 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 01:25:30,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 271 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:25:30,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 01:25:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 01:25:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:25:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 01:25:31,023 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 147 [2020-07-21 01:25:31,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:31,024 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 01:25:31,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:25:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 01:25:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 01:25:31,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:31,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:31,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:31,230 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:31,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:31,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1359928039, now seen corresponding path program 1 times [2020-07-21 01:25:31,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:31,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470917603] [2020-07-21 01:25:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:31,329 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:31,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:31,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 01:25:31,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:31,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:32,297 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:25:32,299 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:25:32,300 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:25:32,301 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:32,302 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:32,322 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 01:25:32,322 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:32,358 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:32,422 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:32,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:32,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470917603] [2020-07-21 01:25:32,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:32,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:25:32,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157824344] [2020-07-21 01:25:32,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:25:32,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:32,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:25:32,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:25:32,608 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 21 states. [2020-07-21 01:25:33,616 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 01:25:35,047 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:25:35,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:35,614 INFO L93 Difference]: Finished difference Result 902 states and 1244 transitions. [2020-07-21 01:25:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 01:25:35,617 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 151 [2020-07-21 01:25:35,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:35,621 INFO L225 Difference]: With dead ends: 902 [2020-07-21 01:25:35,622 INFO L226 Difference]: Without dead ends: 515 [2020-07-21 01:25:35,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 01:25:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-07-21 01:25:35,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 478. [2020-07-21 01:25:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 01:25:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 623 transitions. [2020-07-21 01:25:35,646 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 623 transitions. Word has length 151 [2020-07-21 01:25:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:35,647 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 623 transitions. [2020-07-21 01:25:35,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:25:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 623 transitions. [2020-07-21 01:25:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 01:25:35,651 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:35,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:35,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:35,865 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:35,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:35,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1714254655, now seen corresponding path program 1 times [2020-07-21 01:25:35,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:35,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492243915] [2020-07-21 01:25:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:35,967 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:35,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:35,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 01:25:35,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:36,020 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:36,023 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:25:36,024 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:25:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:25:36,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:36,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492243915] [2020-07-21 01:25:36,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:36,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:25:36,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627368372] [2020-07-21 01:25:36,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:25:36,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:36,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:25:36,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:25:36,115 INFO L87 Difference]: Start difference. First operand 478 states and 623 transitions. Second operand 4 states. [2020-07-21 01:25:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:36,818 INFO L93 Difference]: Finished difference Result 1039 states and 1410 transitions. [2020-07-21 01:25:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:25:36,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2020-07-21 01:25:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:36,823 INFO L225 Difference]: With dead ends: 1039 [2020-07-21 01:25:36,824 INFO L226 Difference]: Without dead ends: 478 [2020-07-21 01:25:36,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:25:36,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-21 01:25:36,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-07-21 01:25:36,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 01:25:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 620 transitions. [2020-07-21 01:25:36,844 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 620 transitions. Word has length 173 [2020-07-21 01:25:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:36,844 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 620 transitions. [2020-07-21 01:25:36,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:25:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 620 transitions. [2020-07-21 01:25:36,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 01:25:36,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:36,847 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:37,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:37,063 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:37,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:37,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1059803454, now seen corresponding path program 1 times [2020-07-21 01:25:37,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:37,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667489492] [2020-07-21 01:25:37,065 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:37,174 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:37,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:37,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:25:37,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:37,675 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-07-21 01:25:37,682 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 6, 2, 2, 1] term [2020-07-21 01:25:37,682 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 01:25:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:37,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:37,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667489492] [2020-07-21 01:25:37,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:37,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-21 01:25:37,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243201076] [2020-07-21 01:25:37,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:25:37,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:37,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:25:37,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:25:37,865 INFO L87 Difference]: Start difference. First operand 478 states and 620 transitions. Second operand 12 states. [2020-07-21 01:25:39,586 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 01:25:40,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:40,324 INFO L93 Difference]: Finished difference Result 1222 states and 1718 transitions. [2020-07-21 01:25:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 01:25:40,325 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 172 [2020-07-21 01:25:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:40,331 INFO L225 Difference]: With dead ends: 1222 [2020-07-21 01:25:40,331 INFO L226 Difference]: Without dead ends: 644 [2020-07-21 01:25:40,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:25:40,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-21 01:25:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2020-07-21 01:25:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-07-21 01:25:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 787 transitions. [2020-07-21 01:25:40,362 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 787 transitions. Word has length 172 [2020-07-21 01:25:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:40,364 INFO L479 AbstractCegarLoop]: Abstraction has 640 states and 787 transitions. [2020-07-21 01:25:40,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:25:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 787 transitions. [2020-07-21 01:25:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 01:25:40,374 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:40,375 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:40,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:40,588 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:40,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:40,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1277740780, now seen corresponding path program 1 times [2020-07-21 01:25:40,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:40,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231951269] [2020-07-21 01:25:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:40,685 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:40,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:40,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 56 conjunts are in the unsatisfiable core [2020-07-21 01:25:40,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:41,288 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 7, 1] term [2020-07-21 01:25:41,288 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 01:25:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:41,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:42,069 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2020-07-21 01:25:42,242 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-07-21 01:25:42,245 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:42,246 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:42,474 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-07-21 01:25:42,583 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:42,584 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:25:42,585 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:42,585 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:42,876 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-07-21 01:25:42,878 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:25:42,879 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:42,917 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:25:43,018 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:25:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:43,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231951269] [2020-07-21 01:25:43,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:43,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 26 [2020-07-21 01:25:43,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461037344] [2020-07-21 01:25:43,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-21 01:25:43,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:43,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-21 01:25:43,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-07-21 01:25:43,240 INFO L87 Difference]: Start difference. First operand 640 states and 787 transitions. Second operand 26 states. [2020-07-21 01:25:46,108 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-07-21 01:25:46,355 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-07-21 01:25:47,127 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-07-21 01:25:48,189 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-07-21 01:25:50,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:50,541 INFO L93 Difference]: Finished difference Result 1758 states and 2353 transitions. [2020-07-21 01:25:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-21 01:25:50,542 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 189 [2020-07-21 01:25:50,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:50,548 INFO L225 Difference]: With dead ends: 1758 [2020-07-21 01:25:50,548 INFO L226 Difference]: Without dead ends: 936 [2020-07-21 01:25:50,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 348 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=577, Invalid=1679, Unknown=0, NotChecked=0, Total=2256 [2020-07-21 01:25:50,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2020-07-21 01:25:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 878. [2020-07-21 01:25:50,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-21 01:25:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1054 transitions. [2020-07-21 01:25:50,581 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1054 transitions. Word has length 189 [2020-07-21 01:25:50,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:50,582 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1054 transitions. [2020-07-21 01:25:50,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-21 01:25:50,582 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1054 transitions. [2020-07-21 01:25:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-21 01:25:50,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:50,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:25:50,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:50,800 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:50,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1927191640, now seen corresponding path program 1 times [2020-07-21 01:25:50,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:50,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736115387] [2020-07-21 01:25:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:50,914 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:50,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:50,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-21 01:25:50,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:51,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:51,932 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:25:51,933 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:25:51,934 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:25:51,935 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:51,935 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:51,965 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 01:25:51,966 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:52,009 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:25:52,104 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:25:52,299 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:52,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736115387] [2020-07-21 01:25:52,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:52,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:25:52,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978129126] [2020-07-21 01:25:52,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:25:52,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:52,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:25:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:25:52,302 INFO L87 Difference]: Start difference. First operand 878 states and 1054 transitions. Second operand 21 states. [2020-07-21 01:25:54,095 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-07-21 01:25:55,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:55,430 INFO L93 Difference]: Finished difference Result 2042 states and 2459 transitions. [2020-07-21 01:25:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 01:25:55,431 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 195 [2020-07-21 01:25:55,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:55,437 INFO L225 Difference]: With dead ends: 2042 [2020-07-21 01:25:55,437 INFO L226 Difference]: Without dead ends: 1158 [2020-07-21 01:25:55,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 367 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 01:25:55,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2020-07-21 01:25:55,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 952. [2020-07-21 01:25:55,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2020-07-21 01:25:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1131 transitions. [2020-07-21 01:25:55,478 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1131 transitions. Word has length 195 [2020-07-21 01:25:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:55,478 INFO L479 AbstractCegarLoop]: Abstraction has 952 states and 1131 transitions. [2020-07-21 01:25:55,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:25:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1131 transitions. [2020-07-21 01:25:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-07-21 01:25:55,483 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:55,483 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:55,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:55,697 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:55,698 INFO L82 PathProgramCache]: Analyzing trace with hash 582447972, now seen corresponding path program 1 times [2020-07-21 01:25:55,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:55,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430719535] [2020-07-21 01:25:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:55,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:55,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:55,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-21 01:25:55,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:56,349 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:56,350 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:25:56,350 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:25:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:25:56,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:56,778 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 29 [2020-07-21 01:25:57,112 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:25:57,113 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:57,114 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:25:57,115 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:57,116 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:57,118 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:25:57,118 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:25:57,120 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:57,122 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:57,123 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:57,124 INFO L501 QuantifierPusher]: Distributing 11 disjuncts over 2 conjuncts [2020-07-21 01:25:57,124 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:57,125 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:57,126 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:57,127 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:57,127 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:57,129 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:57,492 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-07-21 01:25:57,494 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 4, 1] term [2020-07-21 01:25:57,494 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:57,561 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:25:57,565 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:25:57,648 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:57,688 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:57,711 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:25:57,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430719535] [2020-07-21 01:25:57,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:57,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2020-07-21 01:25:57,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934479773] [2020-07-21 01:25:57,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-21 01:25:57,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:57,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-21 01:25:57,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2020-07-21 01:25:57,899 INFO L87 Difference]: Start difference. First operand 952 states and 1131 transitions. Second operand 24 states. [2020-07-21 01:25:59,665 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-07-21 01:26:02,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:02,659 INFO L93 Difference]: Finished difference Result 2248 states and 2849 transitions. [2020-07-21 01:26:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 01:26:02,663 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 231 [2020-07-21 01:26:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:02,671 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 01:26:02,671 INFO L226 Difference]: Without dead ends: 1302 [2020-07-21 01:26:02,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 436 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=391, Invalid=1091, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 01:26:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-07-21 01:26:02,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1253. [2020-07-21 01:26:02,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-07-21 01:26:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1503 transitions. [2020-07-21 01:26:02,723 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1503 transitions. Word has length 231 [2020-07-21 01:26:02,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:02,723 INFO L479 AbstractCegarLoop]: Abstraction has 1253 states and 1503 transitions. [2020-07-21 01:26:02,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-21 01:26:02,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1503 transitions. [2020-07-21 01:26:02,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 01:26:02,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:02,728 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:02,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:02,943 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:02,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1368657450, now seen corresponding path program 1 times [2020-07-21 01:26:02,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:02,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160573639] [2020-07-21 01:26:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:03,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:03,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:03,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:03,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:26:03,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:03,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160573639] [2020-07-21 01:26:03,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:03,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:03,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100165459] [2020-07-21 01:26:03,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:03,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:03,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:03,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:03,131 INFO L87 Difference]: Start difference. First operand 1253 states and 1503 transitions. Second operand 3 states. [2020-07-21 01:26:03,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:03,768 INFO L93 Difference]: Finished difference Result 2943 states and 3679 transitions. [2020-07-21 01:26:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:03,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-07-21 01:26:03,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:03,779 INFO L225 Difference]: With dead ends: 2943 [2020-07-21 01:26:03,779 INFO L226 Difference]: Without dead ends: 1696 [2020-07-21 01:26:03,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-07-21 01:26:03,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1694. [2020-07-21 01:26:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2020-07-21 01:26:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2093 transitions. [2020-07-21 01:26:03,829 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2093 transitions. Word has length 244 [2020-07-21 01:26:03,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:03,830 INFO L479 AbstractCegarLoop]: Abstraction has 1694 states and 2093 transitions. [2020-07-21 01:26:03,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:03,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2093 transitions. [2020-07-21 01:26:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 01:26:03,836 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:03,836 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:04,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:04,050 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:04,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1087928919, now seen corresponding path program 1 times [2020-07-21 01:26:04,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:04,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363778375] [2020-07-21 01:26:04,052 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:04,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:04,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:04,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:04,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:26:04,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:26:04,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363778375] [2020-07-21 01:26:04,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:04,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:04,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944421902] [2020-07-21 01:26:04,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:04,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:04,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:04,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:04,369 INFO L87 Difference]: Start difference. First operand 1694 states and 2093 transitions. Second operand 7 states. [2020-07-21 01:26:05,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:05,600 INFO L93 Difference]: Finished difference Result 4024 states and 5082 transitions. [2020-07-21 01:26:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:26:05,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-07-21 01:26:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:05,609 INFO L225 Difference]: With dead ends: 4024 [2020-07-21 01:26:05,610 INFO L226 Difference]: Without dead ends: 1961 [2020-07-21 01:26:05,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:26:05,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2020-07-21 01:26:05,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1760. [2020-07-21 01:26:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1760 states. [2020-07-21 01:26:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2109 transitions. [2020-07-21 01:26:05,659 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2109 transitions. Word has length 253 [2020-07-21 01:26:05,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:05,660 INFO L479 AbstractCegarLoop]: Abstraction has 1760 states and 2109 transitions. [2020-07-21 01:26:05,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2109 transitions. [2020-07-21 01:26:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-07-21 01:26:05,666 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:05,666 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:05,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:05,880 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:05,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:05,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2012387497, now seen corresponding path program 1 times [2020-07-21 01:26:05,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:05,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25680368] [2020-07-21 01:26:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:05,997 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:05,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:05,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:06,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-21 01:26:06,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 183 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-07-21 01:26:06,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25680368] [2020-07-21 01:26:06,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:06,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:06,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537823972] [2020-07-21 01:26:06,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:06,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:06,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:06,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:06,153 INFO L87 Difference]: Start difference. First operand 1760 states and 2109 transitions. Second operand 7 states. [2020-07-21 01:26:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:07,113 INFO L93 Difference]: Finished difference Result 4107 states and 5000 transitions. [2020-07-21 01:26:07,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:07,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 280 [2020-07-21 01:26:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:07,114 INFO L225 Difference]: With dead ends: 4107 [2020-07-21 01:26:07,115 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:26:07,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:26:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:26:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:26:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:26:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:26:07,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2020-07-21 01:26:07,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:07,124 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:26:07,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:07,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:26:07,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:26:07,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:07,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:26:07,862 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 75 [2020-07-21 01:26:07,968 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 86 [2020-07-21 01:26:10,357 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 186 DAG size of output: 119 [2020-07-21 01:26:10,482 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2020-07-21 01:26:10,762 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 46 [2020-07-21 01:26:11,101 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 46 [2020-07-21 01:26:11,105 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:11,105 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (let ((.cse2 (not (= 1 |old(~a19~0)|))) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse5 (= 8 ~a17~0)) (.cse0 (<= ~a11~0 0)) (.cse4 (< 0 |old(~a11~0)|)) (.cse1 (not (= 1 ~a21~0)))) (and (or .cse0 (= 1 ~a11~0) .cse1 (< 1 |old(~a11~0)|)) (<= ~a17~0 |old(~a17~0)|) (or .cse2 .cse3 .cse4 .cse1 .cse5) (or .cse2 .cse3 (and (<= ~a25~0 0) .cse5) (< 0 |old(~a25~0)|) .cse1) (= ~a19~0 |old(~a19~0)|) (or .cse0 .cse4 .cse1))) [2020-07-21 01:26:11,106 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:11,106 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,106 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,106 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,106 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,107 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,107 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:26:11,107 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:26:11,107 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:26:11,107 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:26:11,107 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,108 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:26:11,109 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:26:11,110 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,111 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 568) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:26:11,112 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,113 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:26:11,114 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,115 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:26:11,116 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:11,117 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:11,118 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:26:11,119 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:26:11,120 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:26:11,121 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,122 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:26:11,123 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse16 (<= ~a25~0 0)) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse15 (<= ~a25~0 |old(~a25~0)|)) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse0 (not (< |old(~a11~0)| 2))) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse19 (= 1 ~a11~0)) (.cse8 (= 9 ~a28~0)) (.cse12 (not (= 9 |old(~a28~0)|))) (.cse21 (not (= 1 |old(~a11~0)|))) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse13 (<= ~a11~0 |old(~a11~0)|)) (.cse14 (<= ~a17~0 |old(~a17~0)|)) (.cse4 (<= 8 ~a17~0)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse17 (not (= 10 |old(~a28~0)|))) (.cse20 (= 10 ~a28~0)) (.cse6 (not (= 1 |old(~a19~0)|))) (.cse7 (not (= 8 |old(~a17~0)|))) (.cse22 (not (= 1 |old(~a25~0)|))) (.cse10 (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|)))) (.cse23 (= 1 ~a25~0)) (.cse3 (not (= 1 ~a21~0))) (.cse11 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (or .cse6 .cse7 .cse8 .cse9 .cse10 .cse3 .cse11 .cse12) (or .cse6 .cse0 (and .cse13 .cse14 .cse5) .cse3) (or .cse6 .cse7 .cse9 .cse15 .cse3 .cse11) (or .cse6 .cse7 .cse9 (not (= 7 |old(~a28~0)|)) (= 7 ~a28~0) .cse10 .cse3 .cse11) (or .cse6 .cse0 (and (or .cse7 (< 0 |old(~a25~0)|) .cse16) .cse4) .cse2 .cse3) (or .cse17 .cse9 .cse18 (and .cse19 (= 7 ~a17~0) .cse16 .cse20 (<= ~a19~0 0)) (not (= 7 |old(~a17~0)|)) .cse3 .cse21) (or .cse6 .cse7 .cse22 .cse10 .cse3 .cse11 .cse12 (and .cse8 .cse23)) (or .cse17 .cse7 .cse22 .cse18 (and .cse20 .cse23) .cse10 .cse3 .cse11) (or .cse6 (and .cse19 .cse8 .cse15) .cse7 .cse9 .cse10 .cse3 .cse12 .cse21) (or .cse0 .cse1 (and .cse13 .cse14 (<= ~a28~0 9)) .cse3) (or .cse6 .cse7 .cse22 (and .cse19 .cse8 .cse23) .cse10 .cse3 .cse12 .cse21) (or .cse2 .cse3 .cse11 (and .cse13 .cse14 .cse4 .cse5)) (or .cse6 .cse7 (not (= 11 |old(~a28~0)|)) .cse22 .cse10 .cse3 .cse11 (and (= 11 ~a28~0) .cse23)) (or .cse6 .cse17 .cse7 .cse20 .cse10 .cse3 .cse11) (or .cse6 .cse7 .cse22 (not (= 8 |old(~a28~0)|)) .cse10 (and (= 8 ~a28~0) .cse23) .cse3 .cse11))) [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,124 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:26:11,125 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:26:11,126 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,127 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:26:11,128 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:11,129 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:26:11,130 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:26:11,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:11,130 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:26:11,130 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:26:11,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:11,130 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (= 7 ~a28~0) (<= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:26:11,130 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse1 (< ~a11~0 2))) (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse0 (<= ~a11~0 0) (<= 8 ~a17~0)) (and (= 1 ~a19~0) .cse0 .cse1) (and .cse0 (<= ~a28~0 9) .cse1) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a11~0) (= 7 ~a17~0) (<= ~a25~0 0) (= 10 ~a28~0) (<= ~a19~0 0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 01:26:11,130 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:11,131 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:11,131 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse1 (< ~a11~0 2))) (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse0 (<= ~a11~0 0) (<= 8 ~a17~0)) (and (= 1 ~a19~0) .cse0 .cse1) (and .cse0 (<= ~a28~0 9) .cse1) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a11~0) (= 7 ~a17~0) (<= ~a25~0 0) (= 10 ~a28~0) (<= ~a19~0 0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 01:26:11,131 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:26:11,131 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:26:11,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:26:11 BoogieIcfgContainer [2020-07-21 01:26:11,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:26:11,154 INFO L168 Benchmark]: Toolchain (without parser) took 50148.94 ms. Allocated memory was 145.8 MB in the beginning and 598.7 MB in the end (delta: 453.0 MB). Free memory was 102.5 MB in the beginning and 234.2 MB in the end (delta: -131.7 MB). Peak memory consumption was 472.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:11,155 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:26:11,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.00 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 173.3 MB in the end (delta: -71.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:11,156 INFO L168 Benchmark]: Boogie Preprocessor took 111.28 ms. Allocated memory is still 206.0 MB. Free memory was 173.3 MB in the beginning and 168.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:11,157 INFO L168 Benchmark]: RCFGBuilder took 1241.82 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 168.2 MB in the beginning and 184.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:11,158 INFO L168 Benchmark]: TraceAbstraction took 47987.36 ms. Allocated memory was 239.1 MB in the beginning and 598.7 MB in the end (delta: 359.7 MB). Free memory was 183.1 MB in the beginning and 234.2 MB in the end (delta: -51.1 MB). Peak memory consumption was 460.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:11,161 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 802.00 ms. Allocated memory was 145.8 MB in the beginning and 206.0 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 173.3 MB in the end (delta: -71.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.28 ms. Allocated memory is still 206.0 MB. Free memory was 173.3 MB in the beginning and 168.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.82 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 168.2 MB in the beginning and 184.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47987.36 ms. Allocated memory was 239.1 MB in the beginning and 598.7 MB in the end (delta: 359.7 MB). Free memory was 183.1 MB in the beginning and 234.2 MB in the end (delta: -51.1 MB). Peak memory consumption was 460.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 568]: 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)) || !(8 == \old(a17))) || ((a17 <= \old(a17) && a11 <= 0) && 8 <= a17)) || ((1 == a19 && a17 <= \old(a17)) && a11 < 2)) || ((a17 <= \old(a17) && a28 <= 9) && a11 < 2)) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || ((((1 == a11 && 7 == a17) && a25 <= 0) && 10 == a28) && a19 <= 0)) || !(1 == a21)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.0s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 799 SDtfs, 7132 SDslu, 1781 SDs, 0 SdLazy, 20968 SolverSat, 1596 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3721 GetRequests, 3460 SyntacticMatches, 18 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1760occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 589 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 116 PreInvPairs, 181 NumberOfFragments, 938 HoareAnnotationTreeSize, 116 FomulaSimplifications, 23402 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5311 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 2173 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3601 ConstructedInterpolants, 0 QuantifiedInterpolants, 10090086 SizeOfPredicates, 127 NumberOfNonLiveVariables, 4017 ConjunctsInSsa, 370 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 1206/1601 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...