/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_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:57:53,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:57:53,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:57:53,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:57:53,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:57:53,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:57:53,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:57:53,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:57:53,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:57:53,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:57:53,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:57:53,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:57:53,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:57:53,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:57:53,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:57:53,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:57:53,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:57:53,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:57:53,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:57:53,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:57:53,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:57:53,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:57:53,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:57:53,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:57:53,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:57:53,545 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 22:57:53,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:57:53,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:57:53,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:57:53,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:57:53,574 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:57:53,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:57:53,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:57:53,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:57:53,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:57:53,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:57:53,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:57:53,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:57:53,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:57:53,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:57:53,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:57:53,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:57:53,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:57:53,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:57:53,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:57:53,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:57:53,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:57:53,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:57:53,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:57:53,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:57:53,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:57:53,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:57:53,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:53,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:57:53,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:57:53,583 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 22:57:53,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:57:53,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:57:53,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:57:53,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:57:53,897 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:57:53,898 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label20.c [2020-07-21 22:57:53,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9df52258/739f0febc2e442b1946750d73fdebf8c/FLAG60a6b1cff [2020-07-21 22:57:54,488 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:57:54,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label20.c [2020-07-21 22:57:54,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9df52258/739f0febc2e442b1946750d73fdebf8c/FLAG60a6b1cff [2020-07-21 22:57:54,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9df52258/739f0febc2e442b1946750d73fdebf8c [2020-07-21 22:57:54,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:57:54,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:57:54,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:57:54,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:57:54,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:57:54,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:57:54" (1/1) ... [2020-07-21 22:57:54,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fecf13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:54, skipping insertion in model container [2020-07-21 22:57:54,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:57:54" (1/1) ... [2020-07-21 22:57:54,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:57:54,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:57:55,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:57:55,512 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:57:55,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:57:55,630 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:57:55,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55 WrapperNode [2020-07-21 22:57:55,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:57:55,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:57:55,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:57:55,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:57:55,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (1/1) ... [2020-07-21 22:57:55,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:57:55,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:57:55,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:57:55,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:57:55,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (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 22:57:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:57:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:57:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:57:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:57:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:57:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:57:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:57:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:57:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:57:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:57:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:57:57,046 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:57:57,046 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:57:57,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:57 BoogieIcfgContainer [2020-07-21 22:57:57,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:57:57,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:57:57,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:57:57,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:57:57,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:57:54" (1/3) ... [2020-07-21 22:57:57,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35210a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:57, skipping insertion in model container [2020-07-21 22:57:57,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:55" (2/3) ... [2020-07-21 22:57:57,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35210a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:57, skipping insertion in model container [2020-07-21 22:57:57,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:57" (3/3) ... [2020-07-21 22:57:57,063 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label20.c [2020-07-21 22:57:57,075 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:57:57,084 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:57:57,100 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:57:57,129 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:57:57,129 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:57:57,129 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:57:57,130 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:57:57,130 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:57:57,130 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:57:57,130 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:57:57,131 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:57:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 22:57:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-21 22:57:57,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:57,168 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] [2020-07-21 22:57:57,169 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:57,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:57,178 INFO L82 PathProgramCache]: Analyzing trace with hash 92787543, now seen corresponding path program 1 times [2020-07-21 22:57:57,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:57,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538753486] [2020-07-21 22:57:57,192 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 22:57:57,321 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:57:57,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:57,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:57:57,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:57,425 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 22:57:57,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:57,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538753486] [2020-07-21 22:57:57,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:57,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:57:57,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726044232] [2020-07-21 22:57:57,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:57:57,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:57,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:57:57,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:57,461 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 22:57:58,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:58,564 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 22:57:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:57:58,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-07-21 22:57:58,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:58,583 INFO L225 Difference]: With dead ends: 571 [2020-07-21 22:57:58,584 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 22:57:58,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 22:57:58,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 22:57:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 22:57:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 22:57:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 22:57:58,671 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 34 [2020-07-21 22:57:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:58,672 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 22:57:58,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:57:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 22:57:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-21 22:57:58,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:58,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:58,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:58,892 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:58,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1726225535, now seen corresponding path program 1 times [2020-07-21 22:57:58,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:58,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669278440] [2020-07-21 22:57:58,894 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 22:57:58,983 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:58,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:58,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 22:57:58,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:59,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:59,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669278440] [2020-07-21 22:57:59,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:59,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:57:59,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509932390] [2020-07-21 22:57:59,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:57:59,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:59,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:57:59,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:57:59,063 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 5 states. [2020-07-21 22:58:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:00,032 INFO L93 Difference]: Finished difference Result 737 states and 1125 transitions. [2020-07-21 22:58:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:58:00,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-07-21 22:58:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:00,037 INFO L225 Difference]: With dead ends: 737 [2020-07-21 22:58:00,037 INFO L226 Difference]: Without dead ends: 449 [2020-07-21 22:58:00,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 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 22:58:00,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-07-21 22:58:00,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2020-07-21 22:58:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-21 22:58:00,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 634 transitions. [2020-07-21 22:58:00,080 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 634 transitions. Word has length 107 [2020-07-21 22:58:00,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:00,080 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 634 transitions. [2020-07-21 22:58:00,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:58:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 634 transitions. [2020-07-21 22:58:00,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 22:58:00,083 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:00,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:00,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:00,299 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:00,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:00,300 INFO L82 PathProgramCache]: Analyzing trace with hash 336244821, now seen corresponding path program 1 times [2020-07-21 22:58:00,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:00,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58769506] [2020-07-21 22:58:00,302 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 22:58:00,392 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:00,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:00,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:00,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:00,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:00,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58769506] [2020-07-21 22:58:00,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:00,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:58:00,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021908725] [2020-07-21 22:58:00,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:58:00,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:00,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:58:00,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:58:00,425 INFO L87 Difference]: Start difference. First operand 443 states and 634 transitions. Second operand 3 states. [2020-07-21 22:58:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:01,195 INFO L93 Difference]: Finished difference Result 1172 states and 1736 transitions. [2020-07-21 22:58:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:58:01,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-21 22:58:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:01,201 INFO L225 Difference]: With dead ends: 1172 [2020-07-21 22:58:01,202 INFO L226 Difference]: Without dead ends: 878 [2020-07-21 22:58:01,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 22:58:01,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-21 22:58:01,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-07-21 22:58:01,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-21 22:58:01,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1251 transitions. [2020-07-21 22:58:01,263 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1251 transitions. Word has length 113 [2020-07-21 22:58:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:01,263 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1251 transitions. [2020-07-21 22:58:01,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:58:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1251 transitions. [2020-07-21 22:58:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 22:58:01,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:01,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:01,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:01,483 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:01,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:01,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1211821722, now seen corresponding path program 1 times [2020-07-21 22:58:01,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:01,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146907317] [2020-07-21 22:58:01,485 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 22:58:01,577 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:01,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:01,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:58:01,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:01,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:01,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146907317] [2020-07-21 22:58:01,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:01,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:58:01,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487527923] [2020-07-21 22:58:01,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:58:01,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:01,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:58:01,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:58:01,644 INFO L87 Difference]: Start difference. First operand 878 states and 1251 transitions. Second operand 5 states. [2020-07-21 22:58:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:02,671 INFO L93 Difference]: Finished difference Result 1492 states and 2221 transitions. [2020-07-21 22:58:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:58:02,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-07-21 22:58:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:02,679 INFO L225 Difference]: With dead ends: 1492 [2020-07-21 22:58:02,679 INFO L226 Difference]: Without dead ends: 763 [2020-07-21 22:58:02,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:58:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-07-21 22:58:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 592. [2020-07-21 22:58:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-07-21 22:58:02,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 718 transitions. [2020-07-21 22:58:02,712 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 718 transitions. Word has length 146 [2020-07-21 22:58:02,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:02,713 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 718 transitions. [2020-07-21 22:58:02,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:58:02,713 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 718 transitions. [2020-07-21 22:58:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-07-21 22:58:02,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:02,719 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:02,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:02,933 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:02,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:02,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1070779543, now seen corresponding path program 1 times [2020-07-21 22:58:02,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:02,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780177976] [2020-07-21 22:58:02,936 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 22:58:03,088 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:03,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:03,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:03,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 22:58:03,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:03,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780177976] [2020-07-21 22:58:03,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:03,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:58:03,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700598338] [2020-07-21 22:58:03,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:58:03,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:03,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:58:03,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:58:03,194 INFO L87 Difference]: Start difference. First operand 592 states and 718 transitions. Second operand 3 states. [2020-07-21 22:58:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:04,001 INFO L93 Difference]: Finished difference Result 886 states and 1115 transitions. [2020-07-21 22:58:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:58:04,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-07-21 22:58:04,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:04,008 INFO L225 Difference]: With dead ends: 886 [2020-07-21 22:58:04,009 INFO L226 Difference]: Without dead ends: 884 [2020-07-21 22:58:04,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 214 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 22:58:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2020-07-21 22:58:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 739. [2020-07-21 22:58:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 22:58:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 892 transitions. [2020-07-21 22:58:04,038 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 892 transitions. Word has length 216 [2020-07-21 22:58:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:04,039 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 892 transitions. [2020-07-21 22:58:04,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:58:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 892 transitions. [2020-07-21 22:58:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-07-21 22:58:04,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:04,044 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:04,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:04,259 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash -383915987, now seen corresponding path program 1 times [2020-07-21 22:58:04,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:04,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798376059] [2020-07-21 22:58:04,263 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 22:58:04,398 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:04,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:04,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 22:58:04,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 22:58:04,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 22:58:04,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798376059] [2020-07-21 22:58:04,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:58:04,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 22:58:04,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708489222] [2020-07-21 22:58:04,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:58:04,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:04,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:58:04,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:58:04,684 INFO L87 Difference]: Start difference. First operand 739 states and 892 transitions. Second operand 5 states. [2020-07-21 22:58:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:05,586 INFO L93 Difference]: Finished difference Result 1631 states and 2038 transitions. [2020-07-21 22:58:05,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:58:05,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-07-21 22:58:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:05,596 INFO L225 Difference]: With dead ends: 1631 [2020-07-21 22:58:05,596 INFO L226 Difference]: Without dead ends: 1041 [2020-07-21 22:58:05,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 450 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 22:58:05,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2020-07-21 22:58:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 890. [2020-07-21 22:58:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-07-21 22:58:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1066 transitions. [2020-07-21 22:58:05,631 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1066 transitions. Word has length 230 [2020-07-21 22:58:05,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:05,632 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1066 transitions. [2020-07-21 22:58:05,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:58:05,632 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1066 transitions. [2020-07-21 22:58:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-07-21 22:58:05,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:05,638 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:05,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:05,853 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:05,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:05,854 INFO L82 PathProgramCache]: Analyzing trace with hash -217131572, now seen corresponding path program 1 times [2020-07-21 22:58:05,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:05,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801832423] [2020-07-21 22:58:05,855 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 22:58:05,963 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:58:05,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:05,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:05,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 22:58:06,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 153 proven. 72 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 22:58:06,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801832423] [2020-07-21 22:58:06,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:58:06,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:58:06,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594627345] [2020-07-21 22:58:06,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:58:06,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:06,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:58:06,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:58:06,246 INFO L87 Difference]: Start difference. First operand 890 states and 1066 transitions. Second operand 7 states. [2020-07-21 22:58:07,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:07,724 INFO L93 Difference]: Finished difference Result 2213 states and 2766 transitions. [2020-07-21 22:58:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:58:07,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 302 [2020-07-21 22:58:07,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:07,735 INFO L225 Difference]: With dead ends: 2213 [2020-07-21 22:58:07,735 INFO L226 Difference]: Without dead ends: 1472 [2020-07-21 22:58:07,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 599 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 22:58:07,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2020-07-21 22:58:07,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1468. [2020-07-21 22:58:07,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1468 states. [2020-07-21 22:58:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1765 transitions. [2020-07-21 22:58:07,776 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1765 transitions. Word has length 302 [2020-07-21 22:58:07,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:07,776 INFO L479 AbstractCegarLoop]: Abstraction has 1468 states and 1765 transitions. [2020-07-21 22:58:07,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:58:07,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1765 transitions. [2020-07-21 22:58:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-07-21 22:58:07,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:07,784 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:07,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:07,997 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:07,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:07,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2076890759, now seen corresponding path program 1 times [2020-07-21 22:58:07,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:07,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650660621] [2020-07-21 22:58:07,999 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 22:58:08,100 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:58:08,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:08,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:08,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 22:58:08,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 155 proven. 72 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 22:58:08,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650660621] [2020-07-21 22:58:08,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:58:08,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:58:08,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842999328] [2020-07-21 22:58:08,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:58:08,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:08,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:58:08,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:58:08,354 INFO L87 Difference]: Start difference. First operand 1468 states and 1765 transitions. Second operand 6 states. [2020-07-21 22:58:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:09,400 INFO L93 Difference]: Finished difference Result 3254 states and 4003 transitions. [2020-07-21 22:58:09,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:58:09,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 311 [2020-07-21 22:58:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:09,408 INFO L225 Difference]: With dead ends: 3254 [2020-07-21 22:58:09,409 INFO L226 Difference]: Without dead ends: 1486 [2020-07-21 22:58:09,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 618 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 22:58:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2020-07-21 22:58:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1468. [2020-07-21 22:58:09,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1468 states. [2020-07-21 22:58:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1696 transitions. [2020-07-21 22:58:09,463 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1696 transitions. Word has length 311 [2020-07-21 22:58:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:09,464 INFO L479 AbstractCegarLoop]: Abstraction has 1468 states and 1696 transitions. [2020-07-21 22:58:09,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:58:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1696 transitions. [2020-07-21 22:58:09,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-07-21 22:58:09,472 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:09,472 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, 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, 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] [2020-07-21 22:58:09,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:09,688 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:09,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:09,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1339363711, now seen corresponding path program 1 times [2020-07-21 22:58:09,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:09,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654961355] [2020-07-21 22:58:09,690 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 22:58:09,854 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:09,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:09,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:09,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 22:58:09,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 22:58:10,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654961355] [2020-07-21 22:58:10,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:58:10,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:58:10,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958506792] [2020-07-21 22:58:10,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:58:10,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:10,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:58:10,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:58:10,330 INFO L87 Difference]: Start difference. First operand 1468 states and 1696 transitions. Second operand 7 states. [2020-07-21 22:58:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:11,752 INFO L93 Difference]: Finished difference Result 4259 states and 5201 transitions. [2020-07-21 22:58:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:58:11,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 347 [2020-07-21 22:58:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:11,772 INFO L225 Difference]: With dead ends: 4259 [2020-07-21 22:58:11,773 INFO L226 Difference]: Without dead ends: 2940 [2020-07-21 22:58:11,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 691 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:58:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2020-07-21 22:58:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2785. [2020-07-21 22:58:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2020-07-21 22:58:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3325 transitions. [2020-07-21 22:58:11,850 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3325 transitions. Word has length 347 [2020-07-21 22:58:11,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:11,850 INFO L479 AbstractCegarLoop]: Abstraction has 2785 states and 3325 transitions. [2020-07-21 22:58:11,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:58:11,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3325 transitions. [2020-07-21 22:58:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-07-21 22:58:11,863 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:11,864 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:12,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:12,078 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:12,079 INFO L82 PathProgramCache]: Analyzing trace with hash -237212521, now seen corresponding path program 1 times [2020-07-21 22:58:12,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:12,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537824364] [2020-07-21 22:58:12,082 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 22:58:12,257 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:58:12,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:12,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:58:12,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-07-21 22:58:12,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:12,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537824364] [2020-07-21 22:58:12,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:12,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:58:12,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810933347] [2020-07-21 22:58:12,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:58:12,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:12,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:58:12,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:58:12,390 INFO L87 Difference]: Start difference. First operand 2785 states and 3325 transitions. Second operand 3 states. [2020-07-21 22:58:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:12,874 INFO L93 Difference]: Finished difference Result 2785 states and 3325 transitions. [2020-07-21 22:58:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:58:12,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 399 [2020-07-21 22:58:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:12,875 INFO L225 Difference]: With dead ends: 2785 [2020-07-21 22:58:12,875 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:58:12,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 397 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 22:58:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:58:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:58:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:58:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:58:12,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 399 [2020-07-21 22:58:12,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:12,882 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:58:12,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:58:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:58:12,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:58:13,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:13,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:58:13,841 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 35 [2020-07-21 22:58:13,984 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2020-07-21 22:58:14,101 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2020-07-21 22:58:14,106 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:58:14,106 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)|)) [2020-07-21 22:58:14,106 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:58:14,106 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 22:58:14,106 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,106 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,106 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 22:58:14,107 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 22:58:14,108 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 22:58:14,108 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 22:58:14,108 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 22:58:14,108 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,108 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,109 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,109 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,109 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,109 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 22:58:14,109 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 22:58:14,109 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 22:58:14,110 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 22:58:14,111 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,112 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 22:58:14,113 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 22:58:14,114 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 22:58:14,115 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,116 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 22:58:14,117 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 22:58:14,118 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 22:58:14,119 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 22:58:14,120 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,121 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 22:58:14,122 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= |old(~a10~0)| ~a10~0)) (.cse3 (<= ~a19~0 |old(~a19~0)|)) (.cse4 (= ~a1~0 |old(~a1~0)|))) (let ((.cse5 (and .cse1 .cse2 .cse3 .cse4)) (.cse0 (not (<= |old(~a10~0)| 0)))) (and (or .cse0 (and .cse1 (<= 8 ~a19~0) .cse2 .cse3 .cse4) (not (<= 8 |old(~a19~0)|))) (or (not (<= |old(~a19~0)| 6)) .cse5) (or .cse5 (not (<= 1 |old(~a10~0)|))) (or (<= 9 ~a19~0) .cse0 (not (<= 9 |old(~a19~0)|)))))) [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 22:58:14,123 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 22:58:14,124 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 22:58:14,125 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 22:58:14,126 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 22:58:14,127 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 22:58:14,128 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 22:58:14,129 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 22:58:14,130 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 22:58:14,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:58:14,130 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-21 22:58:14,130 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:58:14,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:58:14,130 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 22:58:14,130 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 22:58:14,131 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (<= 8 ~a19~0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= 1 ~a10~0) (not (<= |old(~a19~0)| 9))) [2020-07-21 22:58:14,131 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 22:58:14,131 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 22:58:14,131 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (<= 8 ~a19~0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= 1 ~a10~0) (not (<= |old(~a19~0)| 9))) [2020-07-21 22:58:14,131 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 22:58:14,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:58:14 BoogieIcfgContainer [2020-07-21 22:58:14,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:58:14,152 INFO L168 Benchmark]: Toolchain (without parser) took 19297.46 ms. Allocated memory was 144.7 MB in the beginning and 530.1 MB in the end (delta: 385.4 MB). Free memory was 99.3 MB in the beginning and 124.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 360.5 MB. Max. memory is 7.1 GB. [2020-07-21 22:58:14,152 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory is still 119.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 22:58:14,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.36 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 98.9 MB in the beginning and 170.3 MB in the end (delta: -71.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:58:14,154 INFO L168 Benchmark]: Boogie Preprocessor took 101.95 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:58:14,155 INFO L168 Benchmark]: RCFGBuilder took 1319.81 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 165.1 MB in the beginning and 180.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:58:14,155 INFO L168 Benchmark]: TraceAbstraction took 17095.37 ms. Allocated memory was 234.9 MB in the beginning and 530.1 MB in the end (delta: 295.2 MB). Free memory was 180.8 MB in the beginning and 124.2 MB in the end (delta: 56.7 MB). Peak memory consumption was 351.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:58:14,159 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory is still 119.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.36 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 98.9 MB in the beginning and 170.3 MB in the end (delta: -71.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.95 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1319.81 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 165.1 MB in the beginning and 180.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17095.37 ms. Allocated memory was 234.9 MB in the beginning and 530.1 MB in the end (delta: 295.2 MB). Free memory was 180.8 MB in the beginning and 124.2 MB in the end (delta: 56.7 MB). Peak memory consumption was 351.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 88]: 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 Derived loop invariant: (((((8 <= a19 || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || 1 <= a10) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.9s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 634 SDtfs, 2713 SDslu, 259 SDs, 0 SdLazy, 6566 SolverSat, 1357 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3409 GetRequests, 3357 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2785occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 650 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 65 PreInvPairs, 111 NumberOfFragments, 186 HoareAnnotationTreeSize, 65 FomulaSimplifications, 3399 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2109 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2205 NumberOfCodeBlocks, 1874 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3381 ConstructedInterpolants, 0 QuantifiedInterpolants, 2104979 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3453 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 2584/2738 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...