/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 NUM_FUNCTIONS --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/Problem10_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:28:56,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:28:56,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:28:56,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:28:56,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:28:56,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:28:56,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:28:56,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:28:56,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:28:56,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:28:56,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:28:56,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:28:56,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:28:56,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:28:56,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:28:56,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:28:56,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:28:56,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:28:56,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:28:56,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:28:56,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:28:56,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:28:56,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:28:56,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:28:56,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:28:56,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:28:56,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:28:56,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:28:56,366 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 [2020-07-19 23:28:56,380 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:28:56,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:28:56,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:28:56,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:28:56,382 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:28:56,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:28:56,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:28:56,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:28:56,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:28:56,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:28:56,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:28:56,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:28:56,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:28:56,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:28:56,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:28:56,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:28:56,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:28:56,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:28:56,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:28:56,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:28:56,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:28:56,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:28:56,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:28:56,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:28:56,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:28:56,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:28:56,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:28:56,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:28:56,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:28:56,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 [2020-07-19 23:28:56,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:28:56,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:28:56,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:28:56,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:28:56,683 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:28:56,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label21.c [2020-07-19 23:28:56,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331b337dc/65da8177ffb54b49818c126002390f00/FLAG37950bb76 [2020-07-19 23:28:57,350 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:28:57,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label21.c [2020-07-19 23:28:57,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331b337dc/65da8177ffb54b49818c126002390f00/FLAG37950bb76 [2020-07-19 23:28:57,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331b337dc/65da8177ffb54b49818c126002390f00 [2020-07-19 23:28:57,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:28:57,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:28:57,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:28:57,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:28:57,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:28:57,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:28:57" (1/1) ... [2020-07-19 23:28:57,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b31b796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:57, skipping insertion in model container [2020-07-19 23:28:57,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:28:57" (1/1) ... [2020-07-19 23:28:57,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:28:57,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:28:58,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:28:58,085 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:28:58,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:28:58,304 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:28:58,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58 WrapperNode [2020-07-19 23:28:58,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:28:58,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:28:58,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:28:58,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:28:58,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (1/1) ... [2020-07-19 23:28:58,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:28:58,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:28:58,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:28:58,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:28:58,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (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 [2020-07-19 23:28:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:28:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:28:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 23:28:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:28:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:28:59,647 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:28:59,648 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:28:59,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:28:59 BoogieIcfgContainer [2020-07-19 23:28:59,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:28:59,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:28:59,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:28:59,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:28:59,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:28:57" (1/3) ... [2020-07-19 23:28:59,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0bfec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:28:59, skipping insertion in model container [2020-07-19 23:28:59,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:28:58" (2/3) ... [2020-07-19 23:28:59,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0bfec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:28:59, skipping insertion in model container [2020-07-19 23:28:59,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:28:59" (3/3) ... [2020-07-19 23:28:59,662 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label21.c [2020-07-19 23:28:59,672 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:28:59,680 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:28:59,694 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:28:59,720 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:28:59,720 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:28:59,720 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:28:59,720 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:28:59,721 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:28:59,721 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:28:59,721 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:28:59,721 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:28:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-19 23:28:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-19 23:28:59,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:28:59,752 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] [2020-07-19 23:28:59,752 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:28:59,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:28:59,758 INFO L82 PathProgramCache]: Analyzing trace with hash -689743650, now seen corresponding path program 1 times [2020-07-19 23:28:59,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:28:59,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905713278] [2020-07-19 23:28:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4431f231 [2020-07-19 23:28:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:00,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:29:00,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905713278] [2020-07-19 23:29:00,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:29:00,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:29:00,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352723077] [2020-07-19 23:29:00,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:29:00,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:29:00,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:29:00,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:29:00,098 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-19 23:29:02,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:29:02,010 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-07-19 23:29:02,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 23:29:02,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-19 23:29:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:29:02,030 INFO L225 Difference]: With dead ends: 730 [2020-07-19 23:29:02,030 INFO L226 Difference]: Without dead ends: 447 [2020-07-19 23:29:02,038 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 [2020-07-19 23:29:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-19 23:29:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-07-19 23:29:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-07-19 23:29:02,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-07-19 23:29:02,139 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 33 [2020-07-19 23:29:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:29:02,141 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-07-19 23:29:02,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:29:02,142 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-07-19 23:29:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-19 23:29:02,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:29:02,152 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:29:02,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:29:02,152 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:29:02,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:29:02,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1458033486, now seen corresponding path program 1 times [2020-07-19 23:29:02,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:29:02,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657746140] [2020-07-19 23:29:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4431f231 [2020-07-19 23:29:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:29:02,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657746140] [2020-07-19 23:29:02,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:29:02,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:29:02,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360104838] [2020-07-19 23:29:02,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:29:02,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:29:02,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:29:02,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:29:02,490 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-07-19 23:29:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:29:04,421 INFO L93 Difference]: Finished difference Result 1490 states and 2350 transitions. [2020-07-19 23:29:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:29:04,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-07-19 23:29:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:29:04,435 INFO L225 Difference]: With dead ends: 1490 [2020-07-19 23:29:04,435 INFO L226 Difference]: Without dead ends: 1055 [2020-07-19 23:29:04,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:29:04,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2020-07-19 23:29:04,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 745. [2020-07-19 23:29:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-07-19 23:29:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1066 transitions. [2020-07-19 23:29:04,522 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1066 transitions. Word has length 115 [2020-07-19 23:29:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:29:04,525 INFO L479 AbstractCegarLoop]: Abstraction has 745 states and 1066 transitions. [2020-07-19 23:29:04,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:29:04,525 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1066 transitions. [2020-07-19 23:29:04,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-19 23:29:04,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:29:04,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:29:04,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:29:04,538 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:29:04,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:29:04,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1627642498, now seen corresponding path program 1 times [2020-07-19 23:29:04,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:29:04,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903367957] [2020-07-19 23:29:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4431f231 [2020-07-19 23:29:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:29:04,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903367957] [2020-07-19 23:29:04,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:29:04,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:29:04,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806509868] [2020-07-19 23:29:04,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:29:04,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:29:04,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:29:04,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:29:04,967 INFO L87 Difference]: Start difference. First operand 745 states and 1066 transitions. Second operand 8 states. [2020-07-19 23:29:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:29:06,380 INFO L93 Difference]: Finished difference Result 1822 states and 2689 transitions. [2020-07-19 23:29:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 23:29:06,384 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-07-19 23:29:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:29:06,393 INFO L225 Difference]: With dead ends: 1822 [2020-07-19 23:29:06,400 INFO L226 Difference]: Without dead ends: 1083 [2020-07-19 23:29:06,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:29:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-19 23:29:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1055. [2020-07-19 23:29:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2020-07-19 23:29:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1377 transitions. [2020-07-19 23:29:06,445 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1377 transitions. Word has length 155 [2020-07-19 23:29:06,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:29:06,446 INFO L479 AbstractCegarLoop]: Abstraction has 1055 states and 1377 transitions. [2020-07-19 23:29:06,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:29:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1377 transitions. [2020-07-19 23:29:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-19 23:29:06,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:29:06,451 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-19 23:29:06,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 23:29:06,451 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:29:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:29:06,452 INFO L82 PathProgramCache]: Analyzing trace with hash 430065998, now seen corresponding path program 1 times [2020-07-19 23:29:06,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:29:06,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243119077] [2020-07-19 23:29:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4431f231 [2020-07-19 23:29:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:29:06,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243119077] [2020-07-19 23:29:06,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32553427] [2020-07-19 23:29:06,731 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d1f4094 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:29:06,878 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d1f4094 issued 4 check-sat command(s) [2020-07-19 23:29:06,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:29:06,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:29:06,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:29:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:29:07,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:29:07,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-19 23:29:07,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258231334] [2020-07-19 23:29:07,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 23:29:07,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:29:07,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 23:29:07,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:29:07,003 INFO L87 Difference]: Start difference. First operand 1055 states and 1377 transitions. Second operand 10 states. [2020-07-19 23:29:09,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:29:09,089 INFO L93 Difference]: Finished difference Result 2871 states and 3866 transitions. [2020-07-19 23:29:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-19 23:29:09,090 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-07-19 23:29:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:29:09,099 INFO L225 Difference]: With dead ends: 2871 [2020-07-19 23:29:09,100 INFO L226 Difference]: Without dead ends: 1822 [2020-07-19 23:29:09,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-07-19 23:29:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-07-19 23:29:09,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1359. [2020-07-19 23:29:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2020-07-19 23:29:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1727 transitions. [2020-07-19 23:29:09,152 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1727 transitions. Word has length 201 [2020-07-19 23:29:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:29:09,153 INFO L479 AbstractCegarLoop]: Abstraction has 1359 states and 1727 transitions. [2020-07-19 23:29:09,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 23:29:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1727 transitions. [2020-07-19 23:29:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-19 23:29:09,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:29:09,158 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:29:09,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:29:09,372 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:29:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:29:09,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1511297477, now seen corresponding path program 1 times [2020-07-19 23:29:09,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:29:09,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339591521] [2020-07-19 23:29:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4431f231 [2020-07-19 23:29:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:29:09,632 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 52 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 23:29:09,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339591521] [2020-07-19 23:29:09,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039968065] [2020-07-19 23:29:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f95f63c 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 [2020-07-19 23:29:09,770 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f95f63c issued 4 check-sat command(s) [2020-07-19 23:29:09,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:29:09,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:29:09,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:29:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-19 23:29:09,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:29:09,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-19 23:29:09,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499366258] [2020-07-19 23:29:09,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:29:09,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:29:09,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:29:09,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:29:09,874 INFO L87 Difference]: Start difference. First operand 1359 states and 1727 transitions. Second operand 3 states. [2020-07-19 23:29:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:29:10,563 INFO L93 Difference]: Finished difference Result 2710 states and 3448 transitions. [2020-07-19 23:29:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:29:10,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-07-19 23:29:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:29:10,565 INFO L225 Difference]: With dead ends: 2710 [2020-07-19 23:29:10,565 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:29:10,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:29:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:29:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:29:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:29:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:29:10,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2020-07-19 23:29:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:29:10,575 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:29:10,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:29:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:29:10,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:29:10,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:29:10,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:29:11,262 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 31 [2020-07-19 23:29:11,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:29:11,485 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-19 23:29:11,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:29:11,485 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-19 23:29:11,485 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,485 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-19 23:29:11,486 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-19 23:29:11,487 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-19 23:29:11,487 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-19 23:29:11,487 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-19 23:29:11,487 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-19 23:29:11,494 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-19 23:29:11,498 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,499 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-19 23:29:11,500 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-19 23:29:11,501 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-19 23:29:11,501 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-19 23:29:11,501 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-19 23:29:11,501 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-19 23:29:11,501 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-19 23:29:11,501 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,502 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,503 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-19 23:29:11,503 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-19 23:29:11,503 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-19 23:29:11,503 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-19 23:29:11,503 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-19 23:29:11,505 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-19 23:29:11,505 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-19 23:29:11,506 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-19 23:29:11,506 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-19 23:29:11,506 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-19 23:29:11,506 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,506 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,506 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,507 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,507 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,507 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-19 23:29:11,507 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-19 23:29:11,507 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-19 23:29:11,507 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-19 23:29:11,508 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-19 23:29:11,508 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-19 23:29:11,508 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-19 23:29:11,508 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-19 23:29:11,510 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-19 23:29:11,510 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,511 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-19 23:29:11,512 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-19 23:29:11,513 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-19 23:29:11,513 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-19 23:29:11,513 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-19 23:29:11,513 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,513 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-19 23:29:11,514 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-19 23:29:11,515 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-19 23:29:11,515 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-19 23:29:11,515 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-19 23:29:11,519 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-19 23:29:11,519 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,520 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-19 23:29:11,521 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-19 23:29:11,522 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-19 23:29:11,522 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-19 23:29:11,522 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-19 23:29:11,522 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-19 23:29:11,523 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-19 23:29:11,523 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-19 23:29:11,523 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,524 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-19 23:29:11,525 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-19 23:29:11,526 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (= 7 |old(~a19~0)|)) (.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= 1 |old(~a10~0)|)) .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= |old(~a10~0)| 0)) .cse1 .cse0) (or .cse1 (not (<= |old(~a19~0)| 9)) .cse0))) [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,527 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-19 23:29:11,528 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-19 23:29:11,529 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,530 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-19 23:29:11,531 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,532 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-19 23:29:11,533 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-19 23:29:11,534 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-19 23:29:11,534 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-19 23:29:11,534 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-19 23:29:11,534 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-19 23:29:11,534 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:29:11,534 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0)) [2020-07-19 23:29:11,534 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:29:11,535 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:29:11,535 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-19 23:29:11,535 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-19 23:29:11,535 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= 7 ~a19~0)))) (or (and (<= ~a19~0 9) .cse0) (and (<= 1 ~a10~0) (<= ~a10~0 2)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)))) [2020-07-19 23:29:11,535 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-19 23:29:11,535 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-19 23:29:11,535 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (not (= 7 ~a19~0)))) (or (and (<= ~a19~0 9) .cse0) (and (<= 1 ~a10~0) (<= ~a10~0 2)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)))) [2020-07-19 23:29:11,536 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-19 23:29:11,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:29:11 BoogieIcfgContainer [2020-07-19 23:29:11,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:29:11,556 INFO L168 Benchmark]: Toolchain (without parser) took 13961.68 ms. Allocated memory was 138.9 MB in the beginning and 416.3 MB in the end (delta: 277.3 MB). Free memory was 99.1 MB in the beginning and 149.4 MB in the end (delta: -50.3 MB). Peak memory consumption was 227.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:29:11,557 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:29:11,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.87 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 98.9 MB in the beginning and 169.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:29:11,559 INFO L168 Benchmark]: Boogie Preprocessor took 118.90 ms. Allocated memory is still 202.9 MB. Free memory was 169.1 MB in the beginning and 164.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:29:11,560 INFO L168 Benchmark]: RCFGBuilder took 1229.49 ms. Allocated memory was 202.9 MB in the beginning and 232.3 MB in the end (delta: 29.4 MB). Free memory was 164.7 MB in the beginning and 180.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:29:11,561 INFO L168 Benchmark]: TraceAbstraction took 11899.52 ms. Allocated memory was 232.3 MB in the beginning and 416.3 MB in the end (delta: 184.0 MB). Free memory was 179.0 MB in the beginning and 149.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:29:11,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.87 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 98.9 MB in the beginning and 169.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.90 ms. Allocated memory is still 202.9 MB. Free memory was 169.1 MB in the beginning and 164.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1229.49 ms. Allocated memory was 202.9 MB in the beginning and 232.3 MB in the end (delta: 29.4 MB). Free memory was 164.7 MB in the beginning and 180.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11899.52 ms. Allocated memory was 232.3 MB in the beginning and 416.3 MB in the end (delta: 184.0 MB). Free memory was 179.0 MB in the beginning and 149.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 85]: 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: (((((a19 <= 9 && !(7 == a19)) || (1 <= a10 && a10 <= 2)) || (a10 <= 0 && !(7 == a19))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 289 SDtfs, 2774 SDslu, 217 SDs, 0 SdLazy, 4586 SolverSat, 1121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1359occurred in iteration=4, 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, 5 MinimizatonAttempts, 807 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 40 PreInvPairs, 58 NumberOfFragments, 193 HoareAnnotationTreeSize, 40 FomulaSimplifications, 5378 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1709 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1109 NumberOfCodeBlocks, 1109 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1102 ConstructedInterpolants, 0 QuantifiedInterpolants, 425774 SizeOfPredicates, 2 NumberOfNonLiveVariables, 753 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 483/564 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...