/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 05:51:33,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 05:51:33,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 05:51:33,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 05:51:33,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 05:51:33,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 05:51:33,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 05:51:33,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 05:51:33,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 05:51:33,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 05:51:33,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 05:51:33,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 05:51:33,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 05:51:33,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 05:51:33,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 05:51:33,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 05:51:33,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 05:51:33,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 05:51:33,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 05:51:33,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 05:51:33,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 05:51:33,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 05:51:33,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 05:51:33,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 05:51:33,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 05:51:33,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 05:51:33,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 05:51:33,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 05:51:33,332 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 [2020-07-20 05:51:33,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 05:51:33,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 05:51:33,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 05:51:33,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 05:51:33,349 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 05:51:33,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 05:51:33,350 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 05:51:33,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 05:51:33,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 05:51:33,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 05:51:33,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 05:51:33,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 05:51:33,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 05:51:33,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 05:51:33,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 05:51:33,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 05:51:33,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 05:51:33,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 05:51:33,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 05:51:33,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 05:51:33,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 05:51:33,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:51:33,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 05:51:33,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 05:51:33,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 05:51:33,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 05:51:33,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 05:51:33,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 05:51:33,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 05:51:33,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 05:51:33,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 05:51:33,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 05:51:33,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 05:51:33,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 05:51:33,660 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 05:51:33,662 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-07-20 05:51:33,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2770c4a77/2409b519c86b47998db3f98d84af5fc2/FLAG783351972 [2020-07-20 05:51:34,402 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 05:51:34,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-07-20 05:51:34,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2770c4a77/2409b519c86b47998db3f98d84af5fc2/FLAG783351972 [2020-07-20 05:51:34,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2770c4a77/2409b519c86b47998db3f98d84af5fc2 [2020-07-20 05:51:34,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 05:51:34,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 05:51:34,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 05:51:34,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 05:51:34,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 05:51:34,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:51:34" (1/1) ... [2020-07-20 05:51:34,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de9daf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:34, skipping insertion in model container [2020-07-20 05:51:34,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:51:34" (1/1) ... [2020-07-20 05:51:34,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 05:51:34,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 05:51:35,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:51:35,132 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 05:51:35,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:51:35,364 INFO L208 MainTranslator]: Completed translation [2020-07-20 05:51:35,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35 WrapperNode [2020-07-20 05:51:35,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 05:51:35,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 05:51:35,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 05:51:35,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 05:51:35,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (1/1) ... [2020-07-20 05:51:35,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 05:51:35,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 05:51:35,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 05:51:35,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 05:51:35,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (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 [2020-07-20 05:51:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 05:51:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 05:51:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 05:51:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 05:51:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 05:51:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 05:51:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 05:51:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 05:51:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 05:51:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 05:51:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 05:51:36,750 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 05:51:36,750 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 05:51:36,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:51:36 BoogieIcfgContainer [2020-07-20 05:51:36,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 05:51:36,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 05:51:36,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 05:51:36,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 05:51:36,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:51:34" (1/3) ... [2020-07-20 05:51:36,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133959a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:51:36, skipping insertion in model container [2020-07-20 05:51:36,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:35" (2/3) ... [2020-07-20 05:51:36,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133959a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:51:36, skipping insertion in model container [2020-07-20 05:51:36,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:51:36" (3/3) ... [2020-07-20 05:51:36,765 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label54.c [2020-07-20 05:51:36,777 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 05:51:36,786 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 05:51:36,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 05:51:36,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 05:51:36,832 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 05:51:36,832 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 05:51:36,832 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 05:51:36,833 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 05:51:36,833 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 05:51:36,833 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 05:51:36,833 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 05:51:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 05:51:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 05:51:36,886 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:51:36,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:51:36,888 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:51:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:51:36,896 INFO L82 PathProgramCache]: Analyzing trace with hash -622531154, now seen corresponding path program 1 times [2020-07-20 05:51:36,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:51:36,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694211749] [2020-07-20 05:51:36,907 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124efe33 [2020-07-20 05:51:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:51:37,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694211749] [2020-07-20 05:51:37,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:51:37,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 05:51:37,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656701683] [2020-07-20 05:51:37,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 05:51:37,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:51:37,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 05:51:37,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 05:51:37,743 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-20 05:51:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:51:40,204 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-07-20 05:51:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 05:51:40,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-20 05:51:40,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:51:40,229 INFO L225 Difference]: With dead ends: 698 [2020-07-20 05:51:40,229 INFO L226 Difference]: Without dead ends: 423 [2020-07-20 05:51:40,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 05:51:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-20 05:51:40,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-07-20 05:51:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-20 05:51:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 603 transitions. [2020-07-20 05:51:40,342 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 603 transitions. Word has length 128 [2020-07-20 05:51:40,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:51:40,345 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 603 transitions. [2020-07-20 05:51:40,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 05:51:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 603 transitions. [2020-07-20 05:51:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 05:51:40,364 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:51:40,364 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:51:40,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 05:51:40,365 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:51:40,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:51:40,366 INFO L82 PathProgramCache]: Analyzing trace with hash -46694981, now seen corresponding path program 1 times [2020-07-20 05:51:40,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:51:40,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871400878] [2020-07-20 05:51:40,366 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124efe33 [2020-07-20 05:51:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:51:40,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871400878] [2020-07-20 05:51:40,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207448106] [2020-07-20 05:51:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1db0fe2d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:51:40,978 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1db0fe2d issued 4 check-sat command(s) [2020-07-20 05:51:40,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:51:40,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:51:40,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:51:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:51:41,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:51:41,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 05:51:41,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679676704] [2020-07-20 05:51:41,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 05:51:41,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:51:41,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 05:51:41,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:51:41,091 INFO L87 Difference]: Start difference. First operand 417 states and 603 transitions. Second operand 3 states. [2020-07-20 05:51:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:51:41,783 INFO L93 Difference]: Finished difference Result 1237 states and 1820 transitions. [2020-07-20 05:51:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:51:41,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-20 05:51:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:51:41,793 INFO L225 Difference]: With dead ends: 1237 [2020-07-20 05:51:41,793 INFO L226 Difference]: Without dead ends: 826 [2020-07-20 05:51:41,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:51:41,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-07-20 05:51:41,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 689. [2020-07-20 05:51:41,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-07-20 05:51:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 959 transitions. [2020-07-20 05:51:41,847 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 959 transitions. Word has length 145 [2020-07-20 05:51:41,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:51:41,848 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 959 transitions. [2020-07-20 05:51:41,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 05:51:41,848 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 959 transitions. [2020-07-20 05:51:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 05:51:41,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:51:41,853 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:51:42,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 05:51:42,066 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:51:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:51:42,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1092170536, now seen corresponding path program 1 times [2020-07-20 05:51:42,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:51:42,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071284498] [2020-07-20 05:51:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124efe33 [2020-07-20 05:51:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 48 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 05:51:42,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071284498] [2020-07-20 05:51:42,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958927379] [2020-07-20 05:51:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@19d70234 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:51:42,709 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@19d70234 issued 4 check-sat command(s) [2020-07-20 05:51:42,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:51:42,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 05:51:42,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:51:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-20 05:51:42,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:51:42,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-20 05:51:42,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169232560] [2020-07-20 05:51:42,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 05:51:42,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:51:42,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 05:51:42,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 05:51:42,861 INFO L87 Difference]: Start difference. First operand 689 states and 959 transitions. Second operand 5 states. [2020-07-20 05:51:43,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:51:43,881 INFO L93 Difference]: Finished difference Result 1952 states and 2825 transitions. [2020-07-20 05:51:43,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 05:51:43,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-07-20 05:51:43,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:51:43,893 INFO L225 Difference]: With dead ends: 1952 [2020-07-20 05:51:43,894 INFO L226 Difference]: Without dead ends: 1269 [2020-07-20 05:51:43,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 05:51:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2020-07-20 05:51:43,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1106. [2020-07-20 05:51:43,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-20 05:51:43,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1536 transitions. [2020-07-20 05:51:43,985 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1536 transitions. Word has length 182 [2020-07-20 05:51:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:51:43,985 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1536 transitions. [2020-07-20 05:51:43,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 05:51:43,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1536 transitions. [2020-07-20 05:51:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-20 05:51:43,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:51:43,993 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:51:44,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:51:44,207 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:51:44,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:51:44,207 INFO L82 PathProgramCache]: Analyzing trace with hash 447717146, now seen corresponding path program 1 times [2020-07-20 05:51:44,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:51:44,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278148945] [2020-07-20 05:51:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124efe33 [2020-07-20 05:51:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:51:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 05:51:44,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278148945] [2020-07-20 05:51:44,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584911486] [2020-07-20 05:51:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@454d3dfe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:51:44,611 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@454d3dfe issued 4 check-sat command(s) [2020-07-20 05:51:44,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:51:44,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:51:44,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:51:44,705 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 05:51:44,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:51:44,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-20 05:51:44,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760333949] [2020-07-20 05:51:44,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 05:51:44,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:51:44,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 05:51:44,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 05:51:44,709 INFO L87 Difference]: Start difference. First operand 1106 states and 1536 transitions. Second operand 3 states. [2020-07-20 05:51:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:51:45,387 INFO L93 Difference]: Finished difference Result 2748 states and 3878 transitions. [2020-07-20 05:51:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:51:45,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-07-20 05:51:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:51:45,389 INFO L225 Difference]: With dead ends: 2748 [2020-07-20 05:51:45,389 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 05:51:45,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 05:51:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 05:51:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 05:51:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 05:51:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 05:51:45,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 183 [2020-07-20 05:51:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:51:45,398 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 05:51:45,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 05:51:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 05:51:45,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 05:51:45,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:51:45,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 05:51:46,041 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 31 [2020-07-20 05:51:46,177 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 05:51:46,178 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-20 05:51:46,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 05:51:46,178 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 05:51:46,178 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 05:51:46,179 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,179 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,179 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,180 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,180 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,180 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,180 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 05:51:46,180 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 05:51:46,180 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 05:51:46,181 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 05:51:46,181 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 05:51:46,181 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 05:51:46,181 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 05:51:46,181 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 05:51:46,182 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 05:51:46,182 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 05:51:46,183 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,183 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,183 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,184 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,184 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,185 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,185 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 05:51:46,185 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 05:51:46,186 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 05:51:46,187 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 05:51:46,187 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 05:51:46,188 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 05:51:46,190 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 05:51:46,190 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 05:51:46,190 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 05:51:46,190 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 05:51:46,190 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 05:51:46,191 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 542) no Hoare annotation was computed. [2020-07-20 05:51:46,191 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 05:51:46,193 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 05:51:46,193 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 05:51:46,193 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 05:51:46,193 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,193 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,194 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,194 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,194 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,195 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 05:51:46,195 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 05:51:46,201 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 05:51:46,201 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 05:51:46,201 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 05:51:46,201 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 05:51:46,201 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 05:51:46,201 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 05:51:46,202 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 05:51:46,202 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,202 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,202 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,202 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,202 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,203 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 05:51:46,203 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 05:51:46,203 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 05:51:46,203 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 05:51:46,206 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 05:51:46,207 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 05:51:46,207 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 05:51:46,207 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 05:51:46,207 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 05:51:46,207 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 05:51:46,207 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 05:51:46,208 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 05:51:46,208 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 05:51:46,208 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,208 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,208 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 05:51:46,209 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,210 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 05:51:46,211 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 05:51:46,212 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 05:51:46,213 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,213 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,213 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,213 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,213 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,214 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 05:51:46,214 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 05:51:46,214 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 05:51:46,215 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 05:51:46,215 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 05:51:46,216 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 05:51:46,216 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 05:51:46,216 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 05:51:46,216 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,216 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,216 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,217 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,217 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,217 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 05:51:46,218 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 05:51:46,219 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 05:51:46,219 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 05:51:46,219 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)))) (and (or (not (<= |old(~a17~0)| 0)) .cse0) (or (= 14 |old(~a8~0)|) .cse0) (or (not (<= |old(~a16~0)| 4)) .cse0))) [2020-07-20 05:51:46,219 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 05:51:46,219 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,219 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 05:51:46,220 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 05:51:46,221 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 05:51:46,222 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 05:51:46,222 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 05:51:46,223 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,228 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,228 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,228 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 05:51:46,229 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 05:51:46,230 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 05:51:46,231 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 05:51:46,234 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 05:51:46,235 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 05:51:46,236 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 05:51:46,236 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 05:51:46,236 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 05:51:46,237 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 05:51:46,237 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 05:51:46,237 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 05:51:46,238 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 05:51:46,238 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 05:51:46,238 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 05:51:46,238 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 05:51:46,240 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0)) [2020-07-20 05:51:46,240 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 05:51:46,241 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 05:51:46,241 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|))) [2020-07-20 05:51:46,241 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 05:51:46,241 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (<= ~a17~0 0) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 4) (not (= 14 ~a8~0))) [2020-07-20 05:51:46,242 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 05:51:46,242 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 05:51:46,242 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (<= ~a17~0 0) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 4) (not (= 14 ~a8~0))) [2020-07-20 05:51:46,242 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 05:51:46,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:51:46 BoogieIcfgContainer [2020-07-20 05:51:46,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 05:51:46,277 INFO L168 Benchmark]: Toolchain (without parser) took 11675.36 ms. Allocated memory was 137.9 MB in the beginning and 370.7 MB in the end (delta: 232.8 MB). Free memory was 101.3 MB in the beginning and 145.9 MB in the end (delta: -44.5 MB). Peak memory consumption was 188.2 MB. Max. memory is 7.1 GB. [2020-07-20 05:51:46,278 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 05:51:46,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.73 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 100.9 MB in the beginning and 172.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2020-07-20 05:51:46,286 INFO L168 Benchmark]: Boogie Preprocessor took 102.54 ms. Allocated memory is still 206.0 MB. Free memory was 172.5 MB in the beginning and 167.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-20 05:51:46,287 INFO L168 Benchmark]: RCFGBuilder took 1288.44 ms. Allocated memory was 206.0 MB in the beginning and 237.5 MB in the end (delta: 31.5 MB). Free memory was 167.4 MB in the beginning and 181.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-20 05:51:46,289 INFO L168 Benchmark]: TraceAbstraction took 9514.27 ms. Allocated memory was 237.5 MB in the beginning and 370.7 MB in the end (delta: 133.2 MB). Free memory was 181.8 MB in the beginning and 145.9 MB in the end (delta: 35.9 MB). Peak memory consumption was 169.1 MB. Max. memory is 7.1 GB. [2020-07-20 05:51:46,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.73 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 100.9 MB in the beginning and 172.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.54 ms. Allocated memory is still 206.0 MB. Free memory was 172.5 MB in the beginning and 167.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1288.44 ms. Allocated memory was 206.0 MB in the beginning and 237.5 MB in the end (delta: 31.5 MB). Free memory was 167.4 MB in the beginning and 181.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9514.27 ms. Allocated memory was 237.5 MB in the beginning and 370.7 MB in the end (delta: 133.2 MB). Free memory was 181.8 MB in the beginning and 145.9 MB in the end (delta: 35.9 MB). Peak memory consumption was 169.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 542]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((!(15 <= \old(a8)) || a17 <= 0) || !(\old(a16) <= 5)) || a16 <= 4) || !(14 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 464 SDtfs, 1263 SDslu, 79 SDs, 0 SdLazy, 1944 SolverSat, 666 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 548 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1106occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 306 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 35 PreInvPairs, 59 NumberOfFragments, 204 HoareAnnotationTreeSize, 35 FomulaSimplifications, 2127 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 974 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1148 NumberOfCodeBlocks, 1148 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1141 ConstructedInterpolants, 0 QuantifiedInterpolants, 431799 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1323 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 256/264 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...