/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 08:03:58,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 08:03:58,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 08:03:58,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 08:03:58,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 08:03:58,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 08:03:58,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 08:03:58,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 08:03:58,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 08:03:58,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 08:03:58,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 08:03:58,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 08:03:58,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 08:03:58,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 08:03:58,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 08:03:58,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 08:03:58,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 08:03:58,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 08:03:58,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 08:03:58,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 08:03:58,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 08:03:58,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 08:03:58,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 08:03:58,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 08:03:58,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 08:03:58,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 08:03:58,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 08:03:58,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 08:03:58,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 08:03:58,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 08:03:58,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 08:03:58,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 08:03:58,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 08:03:58,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 08:03:58,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 08:03:58,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 08:03:58,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 08:03:58,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 08:03:58,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 08:03:58,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 08:03:58,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 08:03:58,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 08:03:58,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 08:03:58,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 08:03:58,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 08:03:58,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 08:03:58,614 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 08:03:58,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 08:03:58,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 08:03:58,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 08:03:58,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 08:03:58,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 08:03:58,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 08:03:58,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 08:03:58,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 08:03:58,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 08:03:58,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 08:03:58,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 08:03:58,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 08:03:58,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 08:03:58,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 08:03:58,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 08:03:58,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 08:03:58,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 08:03:58,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 08:03:58,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 08:03:58,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 08:03:58,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 08:03:59,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 08:03:59,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 08:03:59,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 08:03:59,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 08:03:59,047 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 08:03:59,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c [2020-12-23 08:03:59,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7996686cd/c5a4e20640124fc299f411177dfcb3b5/FLAG86bd524f7 [2020-12-23 08:03:59,784 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 08:03:59,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c [2020-12-23 08:03:59,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7996686cd/c5a4e20640124fc299f411177dfcb3b5/FLAG86bd524f7 [2020-12-23 08:04:00,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7996686cd/c5a4e20640124fc299f411177dfcb3b5 [2020-12-23 08:04:00,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 08:04:00,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 08:04:00,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 08:04:00,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 08:04:00,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 08:04:00,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa82a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00, skipping insertion in model container [2020-12-23 08:04:00,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 08:04:00,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 08:04:00,304 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c[454,467] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 08:04:00,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 08:04:00,333 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 08:04:00,348 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c[454,467] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 08:04:00,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 08:04:00,370 INFO L208 MainTranslator]: Completed translation [2020-12-23 08:04:00,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00 WrapperNode [2020-12-23 08:04:00,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 08:04:00,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 08:04:00,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 08:04:00,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 08:04:00,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 08:04:00,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 08:04:00,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 08:04:00,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 08:04:00,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... [2020-12-23 08:04:00,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 08:04:00,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 08:04:00,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 08:04:00,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 08:04:00,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 08:04:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 08:04:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 08:04:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 08:04:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 08:04:00,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 08:04:00,862 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-23 08:04:00,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:04:00 BoogieIcfgContainer [2020-12-23 08:04:00,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 08:04:00,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 08:04:00,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 08:04:00,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 08:04:00,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:04:00" (1/3) ... [2020-12-23 08:04:00,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40794442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:04:00, skipping insertion in model container [2020-12-23 08:04:00,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:04:00" (2/3) ... [2020-12-23 08:04:00,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40794442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:04:00, skipping insertion in model container [2020-12-23 08:04:00,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:04:00" (3/3) ... [2020-12-23 08:04:00,888 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound10.c [2020-12-23 08:04:00,901 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 08:04:00,906 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 08:04:00,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 08:04:00,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 08:04:00,977 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 08:04:00,977 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 08:04:00,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 08:04:00,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 08:04:00,980 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 08:04:00,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 08:04:00,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 08:04:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-23 08:04:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 08:04:01,016 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 08:04:01,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 08:04:01,018 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 08:04:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 08:04:01,039 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-12-23 08:04:01,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 08:04:01,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069767544] [2020-12-23 08:04:01,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 08:04:01,231 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 08:04:01,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051280585] [2020-12-23 08:04:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 08:04:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 08:04:01,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 08:04:01,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 08:04:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 08:04:01,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069767544] [2020-12-23 08:04:01,443 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 08:04:01,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051280585] [2020-12-23 08:04:01,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 08:04:01,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 08:04:01,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047433292] [2020-12-23 08:04:01,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 08:04:01,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 08:04:01,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 08:04:01,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 08:04:01,469 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-12-23 08:04:01,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 08:04:01,568 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-23 08:04:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 08:04:01,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-23 08:04:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 08:04:01,583 INFO L225 Difference]: With dead ends: 44 [2020-12-23 08:04:01,583 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 08:04:01,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 08:04:01,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 08:04:01,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2020-12-23 08:04:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-23 08:04:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-23 08:04:01,624 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2020-12-23 08:04:01,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 08:04:01,625 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-23 08:04:01,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 08:04:01,625 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-23 08:04:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 08:04:01,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 08:04:01,626 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-12-23 08:04:01,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-23 08:04:01,842 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 08:04:01,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 08:04:01,844 INFO L82 PathProgramCache]: Analyzing trace with hash 855725686, now seen corresponding path program 1 times [2020-12-23 08:04:01,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 08:04:01,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040988089] [2020-12-23 08:04:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 08:04:01,860 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 08:04:01,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996757020] [2020-12-23 08:04:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 08:04:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 08:04:01,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-23 08:04:01,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 08:04:02,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 08:04:02,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040988089] [2020-12-23 08:04:02,044 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 08:04:02,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996757020] [2020-12-23 08:04:02,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 08:04:02,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 08:04:02,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011574543] [2020-12-23 08:04:02,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 08:04:02,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 08:04:02,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 08:04:02,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 08:04:02,054 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2020-12-23 08:04:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 08:04:02,154 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-12-23 08:04:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 08:04:02,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-23 08:04:02,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 08:04:02,156 INFO L225 Difference]: With dead ends: 29 [2020-12-23 08:04:02,156 INFO L226 Difference]: Without dead ends: 23 [2020-12-23 08:04:02,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 08:04:02,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-23 08:04:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-12-23 08:04:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-23 08:04:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-12-23 08:04:02,169 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2020-12-23 08:04:02,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 08:04:02,170 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-12-23 08:04:02,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 08:04:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-23 08:04:02,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 08:04:02,176 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 08:04:02,176 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2020-12-23 08:04:02,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 08:04:02,391 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 08:04:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 08:04:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1778536670, now seen corresponding path program 2 times [2020-12-23 08:04:02,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 08:04:02,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113721205] [2020-12-23 08:04:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 08:04:02,414 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 08:04:02,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668025934] [2020-12-23 08:04:02,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 08:04:02,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 08:04:02,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 08:04:02,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-23 08:04:02,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 08:04:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 08:04:02,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113721205] [2020-12-23 08:04:02,564 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 08:04:02,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668025934] [2020-12-23 08:04:02,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 08:04:02,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 08:04:02,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113727315] [2020-12-23 08:04:02,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 08:04:02,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 08:04:02,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 08:04:02,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-23 08:04:02,574 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2020-12-23 08:04:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 08:04:02,680 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2020-12-23 08:04:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 08:04:02,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-12-23 08:04:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 08:04:02,682 INFO L225 Difference]: With dead ends: 33 [2020-12-23 08:04:02,682 INFO L226 Difference]: Without dead ends: 27 [2020-12-23 08:04:02,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 08:04:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-23 08:04:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2020-12-23 08:04:02,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-23 08:04:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-23 08:04:02,690 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2020-12-23 08:04:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 08:04:02,690 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-23 08:04:02,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 08:04:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-23 08:04:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 08:04:02,691 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 08:04:02,691 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1] [2020-12-23 08:04:02,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 08:04:02,905 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 08:04:02,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 08:04:02,907 INFO L82 PathProgramCache]: Analyzing trace with hash -58338866, now seen corresponding path program 3 times [2020-12-23 08:04:02,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 08:04:02,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048450064] [2020-12-23 08:04:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 08:04:02,922 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 08:04:02,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610534421] [2020-12-23 08:04:02,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 08:04:02,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 08:04:02,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 08:04:02,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-23 08:04:02,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 08:04:03,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048450064] [2020-12-23 08:04:03,074 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 08:04:03,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610534421] [2020-12-23 08:04:03,074 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-23 08:04:03,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-23 08:04:03,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-23 08:04:03,075 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-23 08:04:03,075 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 08:04:03,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 08:04:03,311 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-23 08:04:03,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 08:04:03 BoogieIcfgContainer [2020-12-23 08:04:03,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 08:04:03,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 08:04:03,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 08:04:03,313 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 08:04:03,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:04:00" (3/4) ... [2020-12-23 08:04:03,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 08:04:03,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 08:04:03,320 INFO L168 Benchmark]: Toolchain (without parser) took 3199.72 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 134.1 MB in the beginning and 166.9 MB in the end (delta: -32.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 08:04:03,321 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 158.3 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 08:04:03,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.02 ms. Allocated memory is still 158.3 MB. Free memory was 133.9 MB in the beginning and 124.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 08:04:03,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.05 ms. Allocated memory is still 158.3 MB. Free memory was 124.2 MB in the beginning and 122.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 08:04:03,324 INFO L168 Benchmark]: Boogie Preprocessor took 22.82 ms. Allocated memory is still 158.3 MB. Free memory was 122.8 MB in the beginning and 121.9 MB in the end (delta: 928.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 08:04:03,325 INFO L168 Benchmark]: RCFGBuilder took 431.88 ms. Allocated memory is still 158.3 MB. Free memory was 121.6 MB in the beginning and 109.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 08:04:03,326 INFO L168 Benchmark]: TraceAbstraction took 2439.61 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 109.1 MB in the beginning and 167.5 MB in the end (delta: -58.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 08:04:03,327 INFO L168 Benchmark]: Witness Printer took 5.27 ms. Allocated memory is still 190.8 MB. Free memory was 167.4 MB in the beginning and 166.9 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 08:04:03,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 158.3 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 247.02 ms. Allocated memory is still 158.3 MB. Free memory was 133.9 MB in the beginning and 124.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.05 ms. Allocated memory is still 158.3 MB. Free memory was 124.2 MB in the beginning and 122.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.82 ms. Allocated memory is still 158.3 MB. Free memory was 122.8 MB in the beginning and 121.9 MB in the end (delta: 928.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 431.88 ms. Allocated memory is still 158.3 MB. Free memory was 121.6 MB in the beginning and 109.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2439.61 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 109.1 MB in the beginning and 167.5 MB in the end (delta: -58.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 5.27 ms. Allocated memory is still 190.8 MB. Free memory was 167.4 MB in the beginning and 166.9 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int counter = 0; [L19] int k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_int() [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] EXPR counter++ [L27] COND TRUE counter++<10 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] EXPR counter++ [L27] COND TRUE counter++<10 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] EXPR counter++ [L27] COND TRUE counter++<10 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] EXPR counter++ [L27] COND TRUE counter++<10 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 43 SDslu, 91 SDs, 0 SdLazy, 90 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1611 SizeOfPredicates, 13 NumberOfNonLiveVariables, 216 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/13 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...