/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/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:26:55,041 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:26:55,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:26:55,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:26:55,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:26:55,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:26:55,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:26:55,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:26:55,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:26:55,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:26:55,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:26:55,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:26:55,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:26:55,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:26:55,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:26:55,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:26:55,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:26:55,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:26:55,089 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 01:26:55,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:26:55,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:26:55,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:26:55,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:26:55,105 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:26:55,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:26:55,105 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:26:55,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:26:55,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:26:55,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:26:55,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:26:55,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:26:55,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:26:55,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:26:55,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:26:55,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:26:55,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:26:55,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:26:55,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:26:55,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:26:55,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:26:55,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:55,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:26:55,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:26:55,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:26:55,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:26:55,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:55,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:26:55,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:26:55,110 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 01:26:55,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:26:55,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:26:55,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:26:55,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:26:55,405 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:26:55,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 01:26:55,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a9cd7a8/aa96a328d7204522bc6f55ccf3381739/FLAG1661e2b44 [2020-07-21 01:26:55,982 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:26:55,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 01:26:55,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a9cd7a8/aa96a328d7204522bc6f55ccf3381739/FLAG1661e2b44 [2020-07-21 01:26:56,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a9cd7a8/aa96a328d7204522bc6f55ccf3381739 [2020-07-21 01:26:56,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:26:56,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:26:56,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:56,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:26:56,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:26:56,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:56" (1/1) ... [2020-07-21 01:26:56,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef8221c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:56, skipping insertion in model container [2020-07-21 01:26:56,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:56" (1/1) ... [2020-07-21 01:26:56,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:26:56,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:26:56,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:56,800 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:26:57,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:57,066 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:26:57,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57 WrapperNode [2020-07-21 01:26:57,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:57,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:26:57,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:26:57,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:26:57,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... [2020-07-21 01:26:57,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:26:57,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:26:57,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:26:57,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:26:57,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:26:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:26:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:26:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:26:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:26:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:26:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:26:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:26:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:26:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:26:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:26:58,482 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:26:58,483 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:26:58,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:58 BoogieIcfgContainer [2020-07-21 01:26:58,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:26:58,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:26:58,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:26:58,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:26:58,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:26:56" (1/3) ... [2020-07-21 01:26:58,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fab7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:58, skipping insertion in model container [2020-07-21 01:26:58,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:57" (2/3) ... [2020-07-21 01:26:58,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fab7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:58, skipping insertion in model container [2020-07-21 01:26:58,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:58" (3/3) ... [2020-07-21 01:26:58,503 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-07-21 01:26:58,513 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:26:58,524 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:26:58,539 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:26:58,569 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:26:58,570 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:26:58,570 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:26:58,570 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:26:58,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:26:58,571 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:26:58,571 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:26:58,571 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:26:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:26:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 01:26:58,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:58,613 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] [2020-07-21 01:26:58,614 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-07-21 01:26:58,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:58,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856405041] [2020-07-21 01:26:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:58,828 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:58,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:58,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:26:58,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:58,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:58,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856405041] [2020-07-21 01:26:58,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:58,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:58,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404877497] [2020-07-21 01:26:58,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:58,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:58,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:58,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:58,942 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:26:59,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:59,935 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 01:26:59,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:59,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 01:26:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:59,953 INFO L225 Difference]: With dead ends: 571 [2020-07-21 01:26:59,953 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:26:59,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 01:26:59,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:27:00,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:27:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:27:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 01:27:00,032 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 61 [2020-07-21 01:27:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:00,033 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 01:27:00,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:27:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 01:27:00,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 01:27:00,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:00,044 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] [2020-07-21 01:27:00,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:00,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:00,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:00,259 INFO L82 PathProgramCache]: Analyzing trace with hash 3077578, now seen corresponding path program 1 times [2020-07-21 01:27:00,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:00,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856564556] [2020-07-21 01:27:00,259 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 01:27:00,352 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:00,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:00,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:27:00,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:00,416 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:27:00,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:27:00,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856564556] [2020-07-21 01:27:00,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:27:00,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-07-21 01:27:00,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007693070] [2020-07-21 01:27:00,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:27:00,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:00,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:27:00,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:00,542 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 01:27:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:01,312 INFO L93 Difference]: Finished difference Result 586 states and 784 transitions. [2020-07-21 01:27:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:27:01,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2020-07-21 01:27:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:01,319 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:27:01,319 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 01:27:01,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 01:27:01,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 01:27:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 01:27:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 782 transitions. [2020-07-21 01:27:01,352 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 782 transitions. Word has length 131 [2020-07-21 01:27:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:01,353 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 782 transitions. [2020-07-21 01:27:01,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:27:01,373 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 782 transitions. [2020-07-21 01:27:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 01:27:01,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:01,378 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:01,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:01,593 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:01,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:01,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1373393371, now seen corresponding path program 1 times [2020-07-21 01:27:01,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:01,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587019648] [2020-07-21 01:27:01,596 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 01:27:01,750 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:01,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:01,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:01,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:01,815 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:27:01,815 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:01,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:01,960 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:01,961 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:01,964 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:27:01,964 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:02,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587019648] [2020-07-21 01:27:02,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:02,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:27:02,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180999725] [2020-07-21 01:27:02,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:27:02,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:02,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:27:02,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:02,170 INFO L87 Difference]: Start difference. First operand 584 states and 782 transitions. Second operand 6 states. [2020-07-21 01:27:03,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:03,168 INFO L93 Difference]: Finished difference Result 1323 states and 1815 transitions. [2020-07-21 01:27:03,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:27:03,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 250 [2020-07-21 01:27:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:03,174 INFO L225 Difference]: With dead ends: 1323 [2020-07-21 01:27:03,175 INFO L226 Difference]: Without dead ends: 745 [2020-07-21 01:27:03,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 494 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:27:03,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-07-21 01:27:03,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 739. [2020-07-21 01:27:03,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 01:27:03,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1006 transitions. [2020-07-21 01:27:03,208 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1006 transitions. Word has length 250 [2020-07-21 01:27:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:03,209 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1006 transitions. [2020-07-21 01:27:03,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:27:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1006 transitions. [2020-07-21 01:27:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-07-21 01:27:03,214 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:03,214 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:03,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:03,427 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:03,428 INFO L82 PathProgramCache]: Analyzing trace with hash -410264303, now seen corresponding path program 1 times [2020-07-21 01:27:03,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:03,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490162633] [2020-07-21 01:27:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:27:03,583 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:03,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:03,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:27:03,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:27:03,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:27:03,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490162633] [2020-07-21 01:27:03,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:27:03,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 01:27:03,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469787296] [2020-07-21 01:27:03,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:27:03,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:03,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:27:03,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:03,880 INFO L87 Difference]: Start difference. First operand 739 states and 1006 transitions. Second operand 5 states. [2020-07-21 01:27:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:04,753 INFO L93 Difference]: Finished difference Result 1772 states and 2417 transitions. [2020-07-21 01:27:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:27:04,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2020-07-21 01:27:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:04,764 INFO L225 Difference]: With dead ends: 1772 [2020-07-21 01:27:04,764 INFO L226 Difference]: Without dead ends: 1039 [2020-07-21 01:27:04,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 502 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:27:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-07-21 01:27:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1037. [2020-07-21 01:27:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2020-07-21 01:27:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1296 transitions. [2020-07-21 01:27:04,808 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1296 transitions. Word has length 256 [2020-07-21 01:27:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:04,809 INFO L479 AbstractCegarLoop]: Abstraction has 1037 states and 1296 transitions. [2020-07-21 01:27:04,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:27:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1296 transitions. [2020-07-21 01:27:04,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-21 01:27:04,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:04,814 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:05,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:05,028 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:05,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1248765022, now seen corresponding path program 1 times [2020-07-21 01:27:05,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:05,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186774800] [2020-07-21 01:27:05,030 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 01:27:05,124 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:05,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:05,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:27:05,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 01:27:05,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:27:05,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186774800] [2020-07-21 01:27:05,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:27:05,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:27:05,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106403399] [2020-07-21 01:27:05,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:27:05,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:05,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:27:05,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:27:05,197 INFO L87 Difference]: Start difference. First operand 1037 states and 1296 transitions. Second operand 5 states. [2020-07-21 01:27:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:06,277 INFO L93 Difference]: Finished difference Result 2243 states and 2797 transitions. [2020-07-21 01:27:06,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:27:06,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-21 01:27:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:06,288 INFO L225 Difference]: With dead ends: 2243 [2020-07-21 01:27:06,289 INFO L226 Difference]: Without dead ends: 1212 [2020-07-21 01:27:06,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:27:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2020-07-21 01:27:06,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1049. [2020-07-21 01:27:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1049 states. [2020-07-21 01:27:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1310 transitions. [2020-07-21 01:27:06,345 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1310 transitions. Word has length 257 [2020-07-21 01:27:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:06,346 INFO L479 AbstractCegarLoop]: Abstraction has 1049 states and 1310 transitions. [2020-07-21 01:27:06,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:27:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1310 transitions. [2020-07-21 01:27:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-21 01:27:06,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:06,355 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:06,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:06,569 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:06,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:06,570 INFO L82 PathProgramCache]: Analyzing trace with hash -649626018, now seen corresponding path program 1 times [2020-07-21 01:27:06,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:06,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329626591] [2020-07-21 01:27:06,572 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 01:27:06,679 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:06,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:06,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:06,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:06,700 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:27:06,701 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 01:27:06,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:06,866 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:06,867 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:06,869 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:27:06,869 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:07,025 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 234 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 01:27:07,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329626591] [2020-07-21 01:27:07,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:07,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:27:07,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578586272] [2020-07-21 01:27:07,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:27:07,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:07,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:27:07,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:07,028 INFO L87 Difference]: Start difference. First operand 1049 states and 1310 transitions. Second operand 6 states. [2020-07-21 01:27:08,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:08,093 INFO L93 Difference]: Finished difference Result 2126 states and 2751 transitions. [2020-07-21 01:27:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:27:08,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-07-21 01:27:08,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:08,125 INFO L225 Difference]: With dead ends: 2126 [2020-07-21 01:27:08,125 INFO L226 Difference]: Without dead ends: 1226 [2020-07-21 01:27:08,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:27:08,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2020-07-21 01:27:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1204. [2020-07-21 01:27:08,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-07-21 01:27:08,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1433 transitions. [2020-07-21 01:27:08,169 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1433 transitions. Word has length 327 [2020-07-21 01:27:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:08,170 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1433 transitions. [2020-07-21 01:27:08,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:27:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1433 transitions. [2020-07-21 01:27:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-21 01:27:08,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:08,177 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:08,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:08,392 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:08,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:08,392 INFO L82 PathProgramCache]: Analyzing trace with hash -2127316315, now seen corresponding path program 1 times [2020-07-21 01:27:08,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:08,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791053024] [2020-07-21 01:27:08,393 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 01:27:08,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:08,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:08,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:08,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 01:27:08,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 241 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 01:27:08,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791053024] [2020-07-21 01:27:08,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:08,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:27:08,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854509955] [2020-07-21 01:27:08,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:27:08,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:27:08,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:27:08,858 INFO L87 Difference]: Start difference. First operand 1204 states and 1433 transitions. Second operand 7 states. [2020-07-21 01:27:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:10,407 INFO L93 Difference]: Finished difference Result 3421 states and 4101 transitions. [2020-07-21 01:27:10,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:27:10,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 336 [2020-07-21 01:27:10,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:10,420 INFO L225 Difference]: With dead ends: 3421 [2020-07-21 01:27:10,420 INFO L226 Difference]: Without dead ends: 1770 [2020-07-21 01:27:10,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 667 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 01:27:10,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2020-07-21 01:27:10,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1194. [2020-07-21 01:27:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-21 01:27:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1354 transitions. [2020-07-21 01:27:10,460 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1354 transitions. Word has length 336 [2020-07-21 01:27:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:10,461 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1354 transitions. [2020-07-21 01:27:10,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:27:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1354 transitions. [2020-07-21 01:27:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-07-21 01:27:10,468 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:10,469 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:27:10,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:10,683 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:10,684 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-07-21 01:27:10,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:10,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226263609] [2020-07-21 01:27:10,685 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 01:27:10,832 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:27:10,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:10,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 01:27:10,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:10,910 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:10,911 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:10,912 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:10,914 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:10,916 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:10,916 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:10,919 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:10,919 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:27,053 WARN L193 SmtUtils]: Spent 16.09 s on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2020-07-21 01:27:27,087 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:27,204 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:27:27,204 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:27,205 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:27,250 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 01:27:27,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:27,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:27,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:27,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:27,542 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,692 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:27,696 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:27,698 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,700 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,709 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,713 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,714 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,716 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,718 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,720 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,723 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,723 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,728 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,729 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,730 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,731 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,737 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:27:27,739 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,740 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,746 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:27,748 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,749 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,751 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:27,752 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:27:27,756 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,757 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,761 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:27:27,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226263609] [2020-07-21 01:27:27,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:27:27,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 01:27:27,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177657179] [2020-07-21 01:27:27,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:27:27,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:27,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:27:27,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:27:27,962 INFO L87 Difference]: Start difference. First operand 1194 states and 1354 transitions. Second operand 8 states. [2020-07-21 01:27:30,961 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2020-07-21 01:30:25,550 WARN L193 SmtUtils]: Spent 17.06 s on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-07-21 01:30:48,943 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 24 [2020-07-21 01:30:57,486 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 22 [2020-07-21 01:31:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:31,473 INFO L93 Difference]: Finished difference Result 3431 states and 4109 transitions. [2020-07-21 01:31:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:31:31,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-07-21 01:31:31,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:31,489 INFO L225 Difference]: With dead ends: 3431 [2020-07-21 01:31:31,490 INFO L226 Difference]: Without dead ends: 2386 [2020-07-21 01:31:31,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=149, Invalid=312, Unknown=1, NotChecked=0, Total=462 [2020-07-21 01:31:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2020-07-21 01:31:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 2374. [2020-07-21 01:31:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2374 states. [2020-07-21 01:31:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 2769 transitions. [2020-07-21 01:31:31,558 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 2769 transitions. Word has length 372 [2020-07-21 01:31:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:31,559 INFO L479 AbstractCegarLoop]: Abstraction has 2374 states and 2769 transitions. [2020-07-21 01:31:31,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:31:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 2769 transitions. [2020-07-21 01:31:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-07-21 01:31:31,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:31,570 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:31:31,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:31,785 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:31,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:31,785 INFO L82 PathProgramCache]: Analyzing trace with hash -832807031, now seen corresponding path program 1 times [2020-07-21 01:31:31,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:31,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813124468] [2020-07-21 01:31:31,786 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 01:31:31,987 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:31:31,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:31,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:31:31,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 01:31:32,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:31:32,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813124468] [2020-07-21 01:31:32,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:31:32,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:31:32,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260313547] [2020-07-21 01:31:32,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:31:32,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:31:32,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:31:32,106 INFO L87 Difference]: Start difference. First operand 2374 states and 2769 transitions. Second operand 3 states. [2020-07-21 01:31:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:33,782 INFO L93 Difference]: Finished difference Result 5177 states and 6071 transitions. [2020-07-21 01:31:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:31:33,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 386 [2020-07-21 01:31:33,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:33,801 INFO L225 Difference]: With dead ends: 5177 [2020-07-21 01:31:33,801 INFO L226 Difference]: Without dead ends: 2807 [2020-07-21 01:31:33,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 384 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 01:31:33,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2020-07-21 01:31:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2805. [2020-07-21 01:31:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2805 states. [2020-07-21 01:31:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3259 transitions. [2020-07-21 01:31:33,888 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3259 transitions. Word has length 386 [2020-07-21 01:31:33,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:33,889 INFO L479 AbstractCegarLoop]: Abstraction has 2805 states and 3259 transitions. [2020-07-21 01:31:33,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:31:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3259 transitions. [2020-07-21 01:31:33,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-07-21 01:31:33,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:33,897 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 01:31:34,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:34,112 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:34,112 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-07-21 01:31:34,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:34,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450116633] [2020-07-21 01:31:34,113 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 01:31:34,379 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:31:34,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:34,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 01:31:34,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:35,279 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2020-07-21 01:31:35,415 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:31:35,415 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:35,416 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:35,491 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 164 proven. 200 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 01:31:35,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:31:35,857 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-07-21 01:31:35,922 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:35,923 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:35,924 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:35,925 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:35,997 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:35,998 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:36,401 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,402 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,403 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,404 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,423 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,424 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,424 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,425 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,426 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,427 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,427 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,428 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 01:31:36,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450116633] [2020-07-21 01:31:36,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:31:36,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 01:31:36,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167388393] [2020-07-21 01:31:36,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:31:36,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:36,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:31:36,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:31:36,841 INFO L87 Difference]: Start difference. First operand 2805 states and 3259 transitions. Second operand 12 states. [2020-07-21 01:31:38,234 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 01:31:47,285 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2020-07-21 01:31:49,518 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-07-21 01:31:50,854 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-07-21 01:31:52,795 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 01:31:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:53,700 INFO L93 Difference]: Finished difference Result 6228 states and 7438 transitions. [2020-07-21 01:31:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-21 01:31:53,706 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 391 [2020-07-21 01:31:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:53,724 INFO L225 Difference]: With dead ends: 6228 [2020-07-21 01:31:53,724 INFO L226 Difference]: Without dead ends: 3572 [2020-07-21 01:31:53,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 781 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2020-07-21 01:31:53,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2020-07-21 01:31:53,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3105. [2020-07-21 01:31:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3105 states. [2020-07-21 01:31:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 3589 transitions. [2020-07-21 01:31:53,831 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 3589 transitions. Word has length 391 [2020-07-21 01:31:53,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:53,832 INFO L479 AbstractCegarLoop]: Abstraction has 3105 states and 3589 transitions. [2020-07-21 01:31:53,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:31:53,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 3589 transitions. [2020-07-21 01:31:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-07-21 01:31:53,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:53,842 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 01:31:54,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:54,055 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:54,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:54,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2055103018, now seen corresponding path program 1 times [2020-07-21 01:31:54,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:54,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086096930] [2020-07-21 01:31:54,057 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 01:31:54,326 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:31:54,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:54,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:31:54,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:54,340 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:54,341 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:54,341 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:54,342 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:54,343 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:54,344 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:54,344 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:54,587 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 21 [2020-07-21 01:31:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-07-21 01:31:54,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:31:54,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086096930] [2020-07-21 01:31:54,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:31:54,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:31:54,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079784043] [2020-07-21 01:31:54,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:31:54,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:54,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:31:54,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:31:54,827 INFO L87 Difference]: Start difference. First operand 3105 states and 3589 transitions. Second operand 3 states. [2020-07-21 01:31:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:58,296 INFO L93 Difference]: Finished difference Result 6347 states and 7431 transitions. [2020-07-21 01:31:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:31:58,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 401 [2020-07-21 01:31:58,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:58,301 INFO L225 Difference]: With dead ends: 6347 [2020-07-21 01:31:58,301 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:31:58,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:31:58,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:31:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:31:58,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:31:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:31:58,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 401 [2020-07-21 01:31:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:58,316 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:31:58,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:31:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:31:58,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:31:58,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:58,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:31:59,171 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 206 [2020-07-21 01:31:59,315 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 206 [2020-07-21 01:31:59,616 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 25 [2020-07-21 01:32:02,847 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 214 DAG size of output: 85 [2020-07-21 01:32:02,971 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 16 [2020-07-21 01:32:05,595 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2020-07-21 01:32:08,198 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2020-07-21 01:32:08,204 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:32:08,205 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|) (or (< |old(~a19~0)| 7) (< 6 ~a19~0))) [2020-07-21 01:32:08,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:32:08,205 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,206 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,207 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:32:08,208 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,209 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:32:08,210 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:32:08,211 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:32:08,212 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:32:08,213 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,214 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:32:08,215 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,216 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:32:08,217 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:32:08,218 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:32:08,219 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse6 (< 6 ~a19~0)) (.cse12 (<= ~a10~0 |old(~a10~0)|)) (.cse4 (<= |old(~a10~0)| ~a10~0)) (.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse7 (= ~a1~0 |old(~a1~0)|))) (let ((.cse10 (not (<= 4 |old(~a10~0)|))) (.cse2 (not (<= |old(~a19~0)| 8))) (.cse0 (and .cse12 .cse4 .cse5 .cse7)) (.cse1 (not (< 6 |old(~a19~0)|))) (.cse8 (not (<= |old(~a19~0)| 9))) (.cse9 (not (<= 2 |old(~a10~0)|))) (.cse3 (and .cse12 .cse4 .cse5 .cse6 .cse7))) (and (or .cse0 (not (<= |old(~a10~0)| 0))) (or .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6 (< ~a10~0 4) .cse7) (not (< |old(~a1~0)| 219)) .cse1 (not (< |old(~a10~0)| 4)) .cse8 .cse9) (or .cse10 .cse1 .cse8 .cse9 .cse3) (or .cse10 .cse0 .cse2) (or .cse1 (not (<= |old(~a10~0)| 2)) .cse3) (or .cse0 .cse8 .cse9 (forall ((v_prenex_5 Int)) (let ((.cse11 (mod v_prenex_5 25))) (or (not (<= 65 (* 5 .cse11))) (not (< v_prenex_5 0)) (= 0 .cse11) (not (<= |old(~a1~0)| (+ (mod (+ (* .cse11 5) 10) 25) 13))))))) (or .cse1 .cse8 .cse9 (forall ((v_~a1~0_425 Int)) (or (not (<= 23 v_~a1~0_425)) (not (<= (+ (div v_~a1~0_425 5) 505228) |old(~a1~0)|)) (not (<= 0 v_~a1~0_425)))) .cse3)))) [2020-07-21 01:32:08,219 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,220 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:32:08,221 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,222 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:32:08,223 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,224 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:32:08,225 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:32:08,226 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:32:08,227 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (= 23 ~a1~0) (< 6 ~a19~0)) [2020-07-21 01:32:08,227 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:32:08,227 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:32:08,227 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< 6 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (< 6 ~a19~0) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 01:32:08,227 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:32:08,227 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse4 (<= 4 ~a10~0)) (.cse6 (<= ~a19~0 8)) (.cse0 (<= ~a19~0 9)) (.cse1 (<= |old(~a10~0)| 1)) (.cse2 (< 6 ~a19~0)) (.cse3 (<= 2 ~a10~0)) (.cse5 (< 8 |old(~a19~0)|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a10~0)| 0)) (and (<= ~a10~0 0) .cse5) (and .cse6 .cse2 .cse5) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) .cse2 (= ~a1~0 |old(~a1~0)|)) (and .cse0 .cse1 (exists ((v_~a1~0_425 Int)) (and (<= (+ (div v_~a1~0_425 5) 505228) ~a1~0) (<= 0 v_~a1~0_425) (<= 23 v_~a1~0_425))) .cse2 .cse3 .cse5) (not (< 6 |old(~a19~0)|)) (and (<= ~a10~0 2) .cse2 .cse5) (not (= 23 |old(~a1~0)|)) (and .cse6 .cse4 .cse5) (and .cse6 (exists ((v_prenex_5 Int)) (let ((.cse7 (mod v_prenex_5 25))) (and (not (= 0 .cse7)) (<= ~a1~0 (+ (mod (+ (* .cse7 5) 10) 25) 13)) (< v_prenex_5 0) (<= 65 (* 5 .cse7))))) .cse3 .cse5) (and .cse0 .cse1 .cse2 (< ~a1~0 219) .cse3 .cse5))) [2020-07-21 01:32:08,228 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:32:08,228 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:32:08,228 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse4 (<= 4 ~a10~0)) (.cse6 (<= ~a19~0 8)) (.cse0 (<= ~a19~0 9)) (.cse1 (<= |old(~a10~0)| 1)) (.cse2 (< 6 ~a19~0)) (.cse3 (<= 2 ~a10~0)) (.cse5 (< 8 |old(~a19~0)|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a10~0)| 0)) (and (<= ~a10~0 0) .cse5) (and .cse6 .cse2 .cse5) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) .cse2 (= ~a1~0 |old(~a1~0)|)) (and .cse0 .cse1 (exists ((v_~a1~0_425 Int)) (and (<= (+ (div v_~a1~0_425 5) 505228) ~a1~0) (<= 0 v_~a1~0_425) (<= 23 v_~a1~0_425))) .cse2 .cse3 .cse5) (not (< 6 |old(~a19~0)|)) (and (<= ~a10~0 2) .cse2 .cse5) (not (= 23 |old(~a1~0)|)) (and .cse6 .cse4 .cse5) (and .cse6 (exists ((v_prenex_5 Int)) (let ((.cse7 (mod v_prenex_5 25))) (and (not (= 0 .cse7)) (<= ~a1~0 (+ (mod (+ (* .cse7 5) 10) 25) 13)) (< v_prenex_5 0) (<= 65 (* 5 .cse7))))) .cse3 .cse5) (and .cse0 .cse1 .cse2 (< ~a1~0 219) .cse3 .cse5))) [2020-07-21 01:32:08,228 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:32:08,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:32:08 BoogieIcfgContainer [2020-07-21 01:32:08,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:32:08,258 INFO L168 Benchmark]: Toolchain (without parser) took 311998.64 ms. Allocated memory was 144.7 MB in the beginning and 574.6 MB in the end (delta: 429.9 MB). Free memory was 101.0 MB in the beginning and 197.9 MB in the end (delta: -96.9 MB). Peak memory consumption was 479.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:32:08,259 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 01:32:08,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.03 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 100.6 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:32:08,261 INFO L168 Benchmark]: Boogie Preprocessor took 104.34 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 165.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:32:08,261 INFO L168 Benchmark]: RCFGBuilder took 1322.07 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 165.9 MB in the beginning and 181.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:32:08,262 INFO L168 Benchmark]: TraceAbstraction took 309761.06 ms. Allocated memory was 237.0 MB in the beginning and 574.6 MB in the end (delta: 337.6 MB). Free memory was 181.0 MB in the beginning and 197.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 467.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:32:08,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 802.03 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 100.6 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.34 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 165.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1322.07 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 165.9 MB in the beginning and 181.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 309761.06 ms. Allocated memory was 237.0 MB in the beginning and 574.6 MB in the end (delta: 337.6 MB). Free memory was 181.0 MB in the beginning and 197.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 467.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: 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: 582]: Loop Invariant [2020-07-21 01:32:08,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_425,QUANTIFIED] [2020-07-21 01:32:08,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,279 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2020-07-21 01:32:08,279 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] Derived loop invariant: ((((((((((((((((a19 <= 9 && \old(a10) <= 1) && 6 < a19) && 2 <= a10) && 4 <= a10) && 8 < \old(a19)) || !(\old(a10) <= 0)) || (a10 <= 0 && 8 < \old(a19))) || ((a19 <= 8 && 6 < a19) && 8 < \old(a19))) || !(\old(a19) <= 9)) || ((((a10 <= \old(a10) && \old(a10) <= a10) && a19 <= \old(a19)) && 6 < a19) && a1 == \old(a1))) || (((((a19 <= 9 && \old(a10) <= 1) && (\exists v_~a1~0_425 : int :: (v_~a1~0_425 / 5 + 505228 <= a1 && 0 <= v_~a1~0_425) && 23 <= v_~a1~0_425)) && 6 < a19) && 2 <= a10) && 8 < \old(a19))) || !(6 < \old(a19))) || ((a10 <= 2 && 6 < a19) && 8 < \old(a19))) || !(23 == \old(a1))) || ((a19 <= 8 && 4 <= a10) && 8 < \old(a19))) || (((a19 <= 8 && (\exists v_prenex_5 : int :: ((!(0 == v_prenex_5 % 25) && a1 <= (v_prenex_5 % 25 * 5 + 10) % 25 + 13) && v_prenex_5 < 0) && 65 <= 5 * (v_prenex_5 % 25))) && 2 <= a10) && 8 < \old(a19))) || (((((a19 <= 9 && \old(a10) <= 1) && 6 < a19) && a1 < 219) && 2 <= a10) && 8 < \old(a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 299.9s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 273.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 567 SDtfs, 3458 SDslu, 467 SDs, 0 SdLazy, 10710 SolverSat, 1504 SolverUnsat, 96 SolverUnknown, 0 SolverNotchecked, 233.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5158 GetRequests, 5059 SyntacticMatches, 15 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 42.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3105occurred 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: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1250 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 124 PreInvPairs, 182 NumberOfFragments, 690 HoareAnnotationTreeSize, 124 FomulaSimplifications, 2820 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10126 FormulaSimplificationTreeSizeReductionInter, 8.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 21.9s InterpolantComputationTime, 3168 NumberOfCodeBlocks, 2617 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 4842 ConstructedInterpolants, 63 QuantifiedInterpolants, 5904174 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4450 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 4337/4756 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...