/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/lcm1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:30:14,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:30:14,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:30:14,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:30:14,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:30:14,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:30:14,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:30:14,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:30:14,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:30:14,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:30:14,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:30:14,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:30:14,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:30:14,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:30:14,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:30:14,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:30:14,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:30:14,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:30:14,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:30:14,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:30:14,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:30:14,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:30:14,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:30:14,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:30:14,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:30:14,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:30:14,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:30:14,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:30:14,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:30:14,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:30:14,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:30:14,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:30:14,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:30:14,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:30:14,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:30:14,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:30:14,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:30:14,351 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:30:14,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:30:14,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:30:14,352 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:30:14,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:30:14,353 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:30:14,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:30:14,353 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:30:14,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:30:14,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:30:14,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:30:14,355 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:30:14,355 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:30:14,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:30:14,356 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:30:14,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:30:14,357 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:30:14,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:30:14,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:30:14,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:30:14,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:30:14,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:30:14,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:30:14,359 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:30:14,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:30:14,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:30:14,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:30:14,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:30:14,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:30:14,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:30:14,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:30:14,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:30:14,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:30:14,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:30:14,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:30:14,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:30:14,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:30:14,364 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:30:14,673 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:30:14,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:30:14,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:30:14,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:30:14,705 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:30:14,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/lcm1.c [2019-11-24 04:30:14,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f16fd2e55/d2d15084e0cc471e909a35162daa1803/FLAG3ff9e758d [2019-11-24 04:30:15,201 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:30:15,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/lcm1.c [2019-11-24 04:30:15,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f16fd2e55/d2d15084e0cc471e909a35162daa1803/FLAG3ff9e758d [2019-11-24 04:30:15,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f16fd2e55/d2d15084e0cc471e909a35162daa1803 [2019-11-24 04:30:15,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:30:15,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:30:15,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:30:15,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:30:15,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:30:15,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:15,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664e1765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15, skipping insertion in model container [2019-11-24 04:30:15,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:15,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:30:15,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:30:15,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:30:15,847 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:30:15,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:30:15,883 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:30:15,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15 WrapperNode [2019-11-24 04:30:15,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:30:15,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:30:15,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:30:15,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:30:15,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:15,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:30:16,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:30:16,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:30:16,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:30:16,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (1/1) ... [2019-11-24 04:30:16,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:30:16,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:30:16,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:30:16,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:30:16,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (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 [2019-11-24 04:30:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:30:16,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2019-11-24 04:30:16,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:30:16,381 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-24 04:30:16,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:30:16 BoogieIcfgContainer [2019-11-24 04:30:16,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:30:16,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:30:16,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:30:16,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:30:16,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:30:15" (1/3) ... [2019-11-24 04:30:16,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13333cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:30:16, skipping insertion in model container [2019-11-24 04:30:16,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:15" (2/3) ... [2019-11-24 04:30:16,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13333cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:30:16, skipping insertion in model container [2019-11-24 04:30:16,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:30:16" (3/3) ... [2019-11-24 04:30:16,390 INFO L109 eAbstractionObserver]: Analyzing ICFG lcm1.c [2019-11-24 04:30:16,403 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:30:16,410 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-24 04:30:16,425 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-24 04:30:16,456 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:30:16,456 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:30:16,456 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:30:16,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:30:16,457 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:30:16,457 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:30:16,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:30:16,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:30:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 04:30:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:30:16,481 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:30:16,482 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:30:16,483 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:30:16,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:30:16,489 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-24 04:30:16,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:30:16,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969324975] [2019-11-24 04:30:16,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:30:16,596 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:30:16,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992316110] [2019-11-24 04:30:16,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-24 04:30:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-11-24 04:30:49,711 WARN L168 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2019-11-24 04:30:49,712 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-24 04:30:49,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:49,933 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-24 04:30:49,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:30:49 BoogieIcfgContainer [2019-11-24 04:30:49,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:30:49,937 INFO L168 Benchmark]: Toolchain (without parser) took 34315.92 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.9 MB in the beginning and 148.2 MB in the end (delta: -45.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:49,937 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 04:30:49,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.21 ms. Allocated memory is still 145.2 MB. Free memory was 102.5 MB in the beginning and 92.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:49,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.78 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.7 MB in the beginning and 180.6 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:49,940 INFO L168 Benchmark]: Boogie Preprocessor took 34.03 ms. Allocated memory is still 201.9 MB. Free memory was 180.6 MB in the beginning and 179.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:49,941 INFO L168 Benchmark]: RCFGBuilder took 337.05 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 162.8 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:49,942 INFO L168 Benchmark]: TraceAbstraction took 33550.83 ms. Allocated memory is still 201.9 MB. Free memory was 162.8 MB in the beginning and 148.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:49,946 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.21 ms. Allocated memory is still 145.2 MB. Free memory was 102.5 MB in the beginning and 92.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 125.78 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.7 MB in the beginning and 180.6 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.03 ms. Allocated memory is still 201.9 MB. Free memory was 180.6 MB in the beginning and 179.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.05 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 162.8 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33550.83 ms. Allocated memory is still 201.9 MB. Free memory was 162.8 MB in the beginning and 148.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] unsigned a, b; [L19] unsigned x, y, u, v; [L20] a = __VERIFIER_nondet_unsigned_int() [L21] b = __VERIFIER_nondet_unsigned_int() [L28] x = a [L29] y = b [L30] u = b [L31] v = 0 [L33] COND TRUE 1 [L10] COND TRUE !(cond) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 5 error locations. Result: UNKNOWN, OverallTime: 33.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 33.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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...