/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_VARIABLES --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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:37:18,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:37:18,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:37:18,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:37:18,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:37:18,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:37:18,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:37:18,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:37:18,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:37:18,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:37:18,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:37:18,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:37:18,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:37:18,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:37:18,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:37:18,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:37:18,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:37:18,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:37:18,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:37:18,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:37:18,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:37:18,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:37:18,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:37:18,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:37:18,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 01:37:18,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 01:37:18,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 01:37:18,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 01:37:18,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 01:37:18,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 01:37:18,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 01:37:18,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 01:37:18,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 01:37:18,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 01:37:18,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 01:37:18,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 01:37:18,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 01:37:18,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 01:37:18,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:37:18,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:37:18,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:37:18,960 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 01:37:18,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:37:18,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:37:18,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:37:18,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:37:18,978 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:37:18,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:37:18,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:37:18,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:37:18,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:37:18,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:37:18,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:37:18,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:37:18,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:37:18,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:37:18,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:37:18,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:37:18,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:37:18,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:37:18,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:37:18,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:37:18,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:37:18,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:37:18,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:37:18,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:37:18,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:37:18,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:37:18,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:37:18,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:37:18,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:37:18,983 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_VARIABLES 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 01:37:19,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:37:19,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:37:19,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:37:19,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:37:19,317 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:37:19,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-07-20 01:37:19,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ab828756/dcb4113c9408439f9c951eafc82d5c8f/FLAG1dca0b3ff [2020-07-20 01:37:20,136 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:37:20,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-07-20 01:37:20,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ab828756/dcb4113c9408439f9c951eafc82d5c8f/FLAG1dca0b3ff [2020-07-20 01:37:20,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ab828756/dcb4113c9408439f9c951eafc82d5c8f [2020-07-20 01:37:20,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:37:20,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:37:20,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:37:20,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:37:20,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:37:20,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:37:20" (1/1) ... [2020-07-20 01:37:20,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fffecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:20, skipping insertion in model container [2020-07-20 01:37:20,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:37:20" (1/1) ... [2020-07-20 01:37:20,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:37:20,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:37:20,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:37:20,929 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:37:21,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:37:21,188 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:37:21,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21 WrapperNode [2020-07-20 01:37:21,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:37:21,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:37:21,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:37:21,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:37:21,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... [2020-07-20 01:37:21,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:37:21,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:37:21,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:37:21,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:37:21,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:37:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:37:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:37:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 01:37:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:37:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 01:37:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:37:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:37:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 01:37:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:37:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:37:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:37:22,925 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:37:22,926 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 01:37:22,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:37:22 BoogieIcfgContainer [2020-07-20 01:37:22,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:37:22,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:37:22,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:37:22,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:37:22,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:37:20" (1/3) ... [2020-07-20 01:37:22,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b9098c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:37:22, skipping insertion in model container [2020-07-20 01:37:22,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:37:21" (2/3) ... [2020-07-20 01:37:22,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b9098c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:37:22, skipping insertion in model container [2020-07-20 01:37:22,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:37:22" (3/3) ... [2020-07-20 01:37:22,953 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label05.c [2020-07-20 01:37:22,969 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:37:22,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:37:23,003 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:37:23,039 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:37:23,039 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:37:23,039 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:37:23,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:37:23,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:37:23,040 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:37:23,040 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:37:23,040 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:37:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 01:37:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 01:37:23,072 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:23,073 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] [2020-07-20 01:37:23,074 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:23,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:23,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1575146953, now seen corresponding path program 1 times [2020-07-20 01:37:23,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:23,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143931006] [2020-07-20 01:37:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:23,603 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 01:37:23,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143931006] [2020-07-20 01:37:23,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:37:23,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 01:37:23,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904079896] [2020-07-20 01:37:23,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:37:23,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:23,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:37:23,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:37:23,633 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-20 01:37:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:26,377 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2020-07-20 01:37:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 01:37:26,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-20 01:37:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:26,402 INFO L225 Difference]: With dead ends: 730 [2020-07-20 01:37:26,403 INFO L226 Difference]: Without dead ends: 447 [2020-07-20 01:37:26,412 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 01:37:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-20 01:37:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2020-07-20 01:37:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-20 01:37:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 595 transitions. [2020-07-20 01:37:26,561 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 595 transitions. Word has length 58 [2020-07-20 01:37:26,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:26,563 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 595 transitions. [2020-07-20 01:37:26,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:37:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 595 transitions. [2020-07-20 01:37:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 01:37:26,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:26,589 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:26,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:37:26,590 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:26,591 INFO L82 PathProgramCache]: Analyzing trace with hash -2085474635, now seen corresponding path program 1 times [2020-07-20 01:37:26,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:26,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667396441] [2020-07-20 01:37:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:37:27,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667396441] [2020-07-20 01:37:27,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481974675] [2020-07-20 01:37:27,153 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2ba8ee2f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:27,287 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2ba8ee2f issued 4 check-sat command(s) [2020-07-20 01:37:27,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:37:27,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:37:27,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:37:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:37:27,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 01:37:27,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-07-20 01:37:27,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865785428] [2020-07-20 01:37:27,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:37:27,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:27,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:37:27,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-20 01:37:27,378 INFO L87 Difference]: Start difference. First operand 443 states and 595 transitions. Second operand 3 states. [2020-07-20 01:37:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:28,181 INFO L93 Difference]: Finished difference Result 880 states and 1198 transitions. [2020-07-20 01:37:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:37:28,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 01:37:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:28,195 INFO L225 Difference]: With dead ends: 880 [2020-07-20 01:37:28,196 INFO L226 Difference]: Without dead ends: 878 [2020-07-20 01:37:28,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-20 01:37:28,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-20 01:37:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 735. [2020-07-20 01:37:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-20 01:37:28,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1029 transitions. [2020-07-20 01:37:28,257 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1029 transitions. Word has length 137 [2020-07-20 01:37:28,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:28,260 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 1029 transitions. [2020-07-20 01:37:28,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:37:28,261 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1029 transitions. [2020-07-20 01:37:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-20 01:37:28,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:28,271 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:28,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 01:37:28,473 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:28,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1012567534, now seen corresponding path program 1 times [2020-07-20 01:37:28,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:28,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608110898] [2020-07-20 01:37:28,475 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:37:28,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608110898] [2020-07-20 01:37:28,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:37:28,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 01:37:28,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596358407] [2020-07-20 01:37:28,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 01:37:28,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:28,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 01:37:28,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:37:28,794 INFO L87 Difference]: Start difference. First operand 735 states and 1029 transitions. Second operand 8 states. [2020-07-20 01:37:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:30,367 INFO L93 Difference]: Finished difference Result 1790 states and 2576 transitions. [2020-07-20 01:37:30,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 01:37:30,369 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 180 [2020-07-20 01:37:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:30,379 INFO L225 Difference]: With dead ends: 1790 [2020-07-20 01:37:30,380 INFO L226 Difference]: Without dead ends: 1061 [2020-07-20 01:37:30,383 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 [2020-07-20 01:37:30,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-07-20 01:37:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1035. [2020-07-20 01:37:30,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-07-20 01:37:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1359 transitions. [2020-07-20 01:37:30,434 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1359 transitions. Word has length 180 [2020-07-20 01:37:30,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:30,434 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1359 transitions. [2020-07-20 01:37:30,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 01:37:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1359 transitions. [2020-07-20 01:37:30,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-07-20 01:37:30,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:30,440 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:37:30,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 01:37:30,440 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:30,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1380429733, now seen corresponding path program 1 times [2020-07-20 01:37:30,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:30,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636166890] [2020-07-20 01:37:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 01:37:30,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636166890] [2020-07-20 01:37:30,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444716848] [2020-07-20 01:37:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d62dd99 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:30,904 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d62dd99 issued 4 check-sat command(s) [2020-07-20 01:37:30,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:37:30,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:37:30,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:37:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:37:31,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:37:31,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-20 01:37:31,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754488439] [2020-07-20 01:37:31,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 01:37:31,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:31,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 01:37:31,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 01:37:31,050 INFO L87 Difference]: Start difference. First operand 1035 states and 1359 transitions. Second operand 10 states. [2020-07-20 01:37:33,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:33,808 INFO L93 Difference]: Finished difference Result 2402 states and 3204 transitions. [2020-07-20 01:37:33,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 01:37:33,809 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2020-07-20 01:37:33,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:33,817 INFO L225 Difference]: With dead ends: 2402 [2020-07-20 01:37:33,817 INFO L226 Difference]: Without dead ends: 1373 [2020-07-20 01:37:33,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2020-07-20 01:37:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-07-20 01:37:33,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1053. [2020-07-20 01:37:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-07-20 01:37:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1292 transitions. [2020-07-20 01:37:33,869 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1292 transitions. Word has length 210 [2020-07-20 01:37:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:33,869 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1292 transitions. [2020-07-20 01:37:33,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 01:37:33,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1292 transitions. [2020-07-20 01:37:33,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-20 01:37:33,874 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:33,875 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-07-20 01:37:34,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:34,079 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:34,080 INFO L82 PathProgramCache]: Analyzing trace with hash -768093372, now seen corresponding path program 1 times [2020-07-20 01:37:34,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:34,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436319697] [2020-07-20 01:37:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 102 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 01:37:34,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436319697] [2020-07-20 01:37:34,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855618968] [2020-07-20 01:37:34,374 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d966477 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 01:37:34,632 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d966477 issued 4 check-sat command(s) [2020-07-20 01:37:34,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:37:34,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:37:34,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:37:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:37:34,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:37:34,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-20 01:37:34,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123567353] [2020-07-20 01:37:34,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 01:37:34,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:34,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 01:37:34,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 01:37:34,766 INFO L87 Difference]: Start difference. First operand 1053 states and 1292 transitions. Second operand 10 states. [2020-07-20 01:37:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:37,264 INFO L93 Difference]: Finished difference Result 2434 states and 3010 transitions. [2020-07-20 01:37:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-20 01:37:37,265 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2020-07-20 01:37:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:37,274 INFO L225 Difference]: With dead ends: 2434 [2020-07-20 01:37:37,275 INFO L226 Difference]: Without dead ends: 1387 [2020-07-20 01:37:37,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2020-07-20 01:37:37,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2020-07-20 01:37:37,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1355. [2020-07-20 01:37:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2020-07-20 01:37:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1655 transitions. [2020-07-20 01:37:37,332 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1655 transitions. Word has length 217 [2020-07-20 01:37:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:37,337 INFO L479 AbstractCegarLoop]: Abstraction has 1355 states and 1655 transitions. [2020-07-20 01:37:37,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 01:37:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1655 transitions. [2020-07-20 01:37:37,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-07-20 01:37:37,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:37,345 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:37:37,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:37,559 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:37,560 INFO L82 PathProgramCache]: Analyzing trace with hash 688709010, now seen corresponding path program 1 times [2020-07-20 01:37:37,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:37,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725098000] [2020-07-20 01:37:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 161 proven. 225 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 01:37:38,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725098000] [2020-07-20 01:37:38,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312147672] [2020-07-20 01:37:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ba3a718 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:38,408 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ba3a718 issued 4 check-sat command(s) [2020-07-20 01:37:38,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:37:38,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:37:38,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:37:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 339 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-20 01:37:38,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:37:38,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-07-20 01:37:38,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919028979] [2020-07-20 01:37:38,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 01:37:38,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:38,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 01:37:38,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-07-20 01:37:38,619 INFO L87 Difference]: Start difference. First operand 1355 states and 1655 transitions. Second operand 13 states. [2020-07-20 01:37:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:45,079 INFO L93 Difference]: Finished difference Result 5202 states and 6554 transitions. [2020-07-20 01:37:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-20 01:37:45,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 306 [2020-07-20 01:37:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:45,098 INFO L225 Difference]: With dead ends: 5202 [2020-07-20 01:37:45,098 INFO L226 Difference]: Without dead ends: 2797 [2020-07-20 01:37:45,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=275, Invalid=1057, Unknown=0, NotChecked=0, Total=1332 [2020-07-20 01:37:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2020-07-20 01:37:45,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1349. [2020-07-20 01:37:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1349 states. [2020-07-20 01:37:45,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1565 transitions. [2020-07-20 01:37:45,168 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1565 transitions. Word has length 306 [2020-07-20 01:37:45,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:45,168 INFO L479 AbstractCegarLoop]: Abstraction has 1349 states and 1565 transitions. [2020-07-20 01:37:45,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 01:37:45,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1565 transitions. [2020-07-20 01:37:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-20 01:37:45,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:37:45,178 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:45,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:45,394 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:37:45,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:37:45,395 INFO L82 PathProgramCache]: Analyzing trace with hash 266495898, now seen corresponding path program 1 times [2020-07-20 01:37:45,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:37:45,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957622617] [2020-07-20 01:37:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20024af5 [2020-07-20 01:37:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:37:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 239 proven. 158 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 01:37:46,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957622617] [2020-07-20 01:37:46,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738804782] [2020-07-20 01:37:46,021 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a0086f9 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:37:46,337 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a0086f9 issued 4 check-sat command(s) [2020-07-20 01:37:46,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:37:46,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:37:46,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:37:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-20 01:37:46,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 01:37:46,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2020-07-20 01:37:46,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544877305] [2020-07-20 01:37:46,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:37:46,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:37:46,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:37:46,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:37:46,520 INFO L87 Difference]: Start difference. First operand 1349 states and 1565 transitions. Second operand 3 states. [2020-07-20 01:37:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:37:46,898 INFO L93 Difference]: Finished difference Result 1349 states and 1565 transitions. [2020-07-20 01:37:46,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:37:46,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2020-07-20 01:37:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:37:46,903 INFO L225 Difference]: With dead ends: 1349 [2020-07-20 01:37:46,903 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 01:37:46,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:37:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 01:37:46,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 01:37:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 01:37:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 01:37:46,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 342 [2020-07-20 01:37:46,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:37:46,909 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 01:37:46,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:37:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 01:37:46,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 01:37:47,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-20 01:37:47,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 01:37:47,847 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 25 [2020-07-20 01:37:48,088 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 44 [2020-07-20 01:37:48,326 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 44 [2020-07-20 01:37:48,331 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:37:48,332 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)|)) [2020-07-20 01:37:48,332 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:37:48,333 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 01:37:48,334 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,334 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,334 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,334 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,335 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,335 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,335 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 01:37:48,335 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 01:37:48,336 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 01:37:48,337 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 01:37:48,340 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 01:37:48,340 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 01:37:48,341 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 01:37:48,341 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 01:37:48,341 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 01:37:48,341 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 01:37:48,342 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 01:37:48,342 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,342 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,342 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,342 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,342 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 01:37:48,343 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 01:37:48,344 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 01:37:48,344 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 01:37:48,344 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 01:37:48,344 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 01:37:48,347 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 01:37:48,348 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2020-07-20 01:37:48,348 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 01:37:48,348 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,348 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,348 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,348 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,349 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,349 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 01:37:48,349 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 01:37:48,350 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 01:37:48,351 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 01:37:48,351 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,351 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,351 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,353 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,353 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,353 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 01:37:48,354 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,355 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 01:37:48,356 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,357 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 01:37:48,358 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 01:37:48,359 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 01:37:48,359 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 01:37:48,360 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 01:37:48,360 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 01:37:48,360 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 01:37:48,361 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 01:37:48,362 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 01:37:48,363 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 01:37:48,364 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 01:37:48,364 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 01:37:48,365 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 01:37:48,365 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 01:37:48,365 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 01:37:48,365 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 01:37:48,365 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 01:37:48,365 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 01:37:48,366 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 01:37:48,367 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 01:37:48,368 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= 7 |old(~a19~0)|)) .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= |old(~a19~0)| 9)) .cse0 (= 1 |old(~a10~0)|)))) [2020-07-20 01:37:48,368 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 01:37:48,368 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 01:37:48,368 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 01:37:48,368 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,368 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,368 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 01:37:48,369 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 01:37:48,370 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 01:37:48,370 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 01:37:48,370 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 01:37:48,370 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 01:37:48,370 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 01:37:48,371 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 01:37:48,371 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 01:37:48,371 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 01:37:48,372 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 01:37:48,373 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,374 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 01:37:48,375 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:37:48,376 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 8 ~a19~0) (= 0 ~a12~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-20 01:37:48,376 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 01:37:48,377 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:37:48,377 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 8 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-20 01:37:48,377 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 01:37:48,377 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= 9 |old(~a19~0)|)) (.cse1 (= ~a19~0 |old(~a19~0)|))) (or (and (<= 7 ~a19~0) (<= ~a10~0 2) .cse0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (and (<= ~a19~0 8) (not (= 1 ~a10~0)) .cse0) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 8 |old(~a19~0)|)) (and .cse0 .cse1) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) .cse1 (= ~a1~0 |old(~a1~0)|)))) [2020-07-20 01:37:48,377 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 01:37:48,377 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 01:37:48,378 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (= 9 |old(~a19~0)|)) (.cse1 (= ~a19~0 |old(~a19~0)|))) (or (and (<= 7 ~a19~0) (<= ~a10~0 2) .cse0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (and (<= ~a19~0 8) (not (= 1 ~a10~0)) .cse0) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 8 |old(~a19~0)|)) (and .cse0 .cse1) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) .cse1 (= ~a1~0 |old(~a1~0)|)))) [2020-07-20 01:37:48,378 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 01:37:48,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:37:48 BoogieIcfgContainer [2020-07-20 01:37:48,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:37:48,403 INFO L168 Benchmark]: Toolchain (without parser) took 28029.29 ms. Allocated memory was 139.5 MB in the beginning and 576.2 MB in the end (delta: 436.7 MB). Free memory was 102.2 MB in the beginning and 250.4 MB in the end (delta: -148.2 MB). Peak memory consumption was 288.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:37:48,403 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 01:37:48,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.23 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.8 MB in the beginning and 172.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-07-20 01:37:48,405 INFO L168 Benchmark]: Boogie Preprocessor took 152.62 ms. Allocated memory is still 206.0 MB. Free memory was 172.5 MB in the beginning and 167.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:37:48,406 INFO L168 Benchmark]: RCFGBuilder took 1589.32 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 167.5 MB in the beginning and 182.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:37:48,407 INFO L168 Benchmark]: TraceAbstraction took 25465.73 ms. Allocated memory was 239.6 MB in the beginning and 576.2 MB in the end (delta: 336.6 MB). Free memory was 182.5 MB in the beginning and 250.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 268.6 MB. Max. memory is 7.1 GB. [2020-07-20 01:37:48,411 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 813.23 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.8 MB in the beginning and 172.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.62 ms. Allocated memory is still 206.0 MB. Free memory was 172.5 MB in the beginning and 167.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1589.32 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 167.5 MB in the beginning and 182.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25465.73 ms. Allocated memory was 239.6 MB in the beginning and 576.2 MB in the end (delta: 336.6 MB). Free memory was 182.5 MB in the beginning and 250.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 268.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 160]: 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: (((((((((((7 <= a19 && a10 <= 2) && 9 == \old(a19)) || !(23 <= \old(a1))) || !(\old(a1) <= 23)) || ((a19 <= 8 && !(1 == a10)) && 9 == \old(a19))) || !(\old(a10) <= 0)) || !(0 == a12)) || !(8 <= \old(a19))) || (9 == \old(a19) && a19 == \old(a19))) || !(14 == a4)) || !(\old(a19) <= 9)) || ((a10 == \old(a10) && a19 == \old(a19)) && a1 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.0s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 195 SDtfs, 4621 SDslu, 353 SDs, 0 SdLazy, 9222 SolverSat, 2097 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1376 GetRequests, 1267 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1355occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 1973 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 53 PreInvPairs, 91 NumberOfFragments, 265 HoareAnnotationTreeSize, 53 FomulaSimplifications, 23521 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4235 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 2662 NumberOfCodeBlocks, 2662 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2650 ConstructedInterpolants, 0 QuantifiedInterpolants, 1582281 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2125 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 1969/2449 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...