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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:41,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:41,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:41,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:41,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:41,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:41,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:41,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:41,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:41,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:41,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:41,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:41,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:41,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:41,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:41,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:41,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:41,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:41,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:41,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:41,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:41,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:41,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:41,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:41,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:41,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:41,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:41,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:41,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:41,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:41,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:41,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:41,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:41,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:41,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:41,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:41,485 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 [2019-10-13 19:53:41,508 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:41,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:41,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:41,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:41,511 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:41,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:41,511 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:41,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:41,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:41,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:41,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:41,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:41,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:41,515 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:41,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:41,515 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:41,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:41,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:41,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:41,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:41,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:41,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:41,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:41,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:41,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:41,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:41,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:41,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:41,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:41,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:41,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:41,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:41,849 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:41,849 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:41,850 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c [2019-10-13 19:53:41,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da8423678/2b7b8e5863374b45a0614aeec65a5561/FLAGccb1048c9 [2019-10-13 19:53:42,438 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:42,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c [2019-10-13 19:53:42,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da8423678/2b7b8e5863374b45a0614aeec65a5561/FLAGccb1048c9 [2019-10-13 19:53:42,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da8423678/2b7b8e5863374b45a0614aeec65a5561 [2019-10-13 19:53:42,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:42,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:42,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:42,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:42,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:42,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:42" (1/1) ... [2019-10-13 19:53:42,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777900ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:42, skipping insertion in model container [2019-10-13 19:53:42,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:42" (1/1) ... [2019-10-13 19:53:42,827 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:42,849 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:43,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:43,044 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:43,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:43,084 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:43,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43 WrapperNode [2019-10-13 19:53:43,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:43,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:43,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:43,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:43,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (1/1) ... [2019-10-13 19:53:43,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:43,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:43,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:43,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:43,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (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 [2019-10-13 19:53:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:53:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 19:53:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:43,521 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:43,522 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 19:53:43,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:43 BoogieIcfgContainer [2019-10-13 19:53:43,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:43,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:43,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:43,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:43,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:42" (1/3) ... [2019-10-13 19:53:43,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4dfc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:43, skipping insertion in model container [2019-10-13 19:53:43,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:43" (2/3) ... [2019-10-13 19:53:43,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4dfc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:43, skipping insertion in model container [2019-10-13 19:53:43,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:43" (3/3) ... [2019-10-13 19:53:43,543 INFO L109 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2019-10-13 19:53:43,568 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:43,576 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:43,600 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:43,633 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:43,634 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:43,634 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:43,634 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:43,634 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:43,634 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:43,634 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:43,634 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:43,651 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-13 19:53:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:53:43,658 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:43,659 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:43,661 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:43,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:43,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1832694891, now seen corresponding path program 1 times [2019-10-13 19:53:43,673 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:43,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516099819] [2019-10-13 19:53:43,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:43,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:43,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:43,757 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:43,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212490616] [2019-10-13 19:53:43,758 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 [2019-10-13 19:53:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:43,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 19:53:43,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:43,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:43,913 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:43,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516099819] [2019-10-13 19:53:43,972 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:43,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212490616] [2019-10-13 19:53:43,973 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:43,973 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-10-13 19:53:43,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723051380] [2019-10-13 19:53:43,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:53:43,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:43,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:53:43,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:53:43,999 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2019-10-13 19:53:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:44,158 INFO L93 Difference]: Finished difference Result 62 states and 91 transitions. [2019-10-13 19:53:44,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:53:44,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-13 19:53:44,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:44,171 INFO L225 Difference]: With dead ends: 62 [2019-10-13 19:53:44,171 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 19:53:44,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:53:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 19:53:44,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2019-10-13 19:53:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 19:53:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-10-13 19:53:44,218 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-10-13 19:53:44,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:44,219 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-10-13 19:53:44,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:53:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-10-13 19:53:44,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 19:53:44,220 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:44,221 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:44,423 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:44,423 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:44,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1374604441, now seen corresponding path program 1 times [2019-10-13 19:53:44,426 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:44,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290168225] [2019-10-13 19:53:44,427 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:44,427 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:44,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:44,439 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:44,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137246077] [2019-10-13 19:53:44,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-13 19:53:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:44,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 19:53:44,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:44,530 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:44,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290168225] [2019-10-13 19:53:44,559 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:44,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137246077] [2019-10-13 19:53:44,559 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:44,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-10-13 19:53:44,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409625883] [2019-10-13 19:53:44,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:53:44,562 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:44,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:53:44,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:53:44,563 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 6 states. [2019-10-13 19:53:44,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:44,683 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2019-10-13 19:53:44,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:53:44,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-13 19:53:44,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:44,685 INFO L225 Difference]: With dead ends: 54 [2019-10-13 19:53:44,685 INFO L226 Difference]: Without dead ends: 27 [2019-10-13 19:53:44,686 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:53:44,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-13 19:53:44,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-10-13 19:53:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 19:53:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-10-13 19:53:44,693 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2019-10-13 19:53:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:44,693 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-10-13 19:53:44,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:53:44,694 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-10-13 19:53:44,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-13 19:53:44,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:44,695 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:44,895 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:44,896 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:44,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1853309542, now seen corresponding path program 1 times [2019-10-13 19:53:44,897 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:44,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442846191] [2019-10-13 19:53:44,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:44,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:44,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:44,907 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:44,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049315140] [2019-10-13 19:53:44,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-13 19:53:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:44,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-13 19:53:44,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:45,066 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-13 19:53:45,066 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 19:53:45,070 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 19:53:45,071 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 19:53:45,071 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-10-13 19:53:45,133 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 19:53:45,134 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2019-10-13 19:53:45,135 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-13 19:53:45,148 INFO L567 ElimStorePlain]: treesize reduction 14, result has 41.7 percent of original size [2019-10-13 19:53:45,149 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 19:53:45,150 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:10 [2019-10-13 19:53:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:45,200 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:45,311 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2019-10-13 19:53:45,317 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2019-10-13 19:53:45,319 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 19:53:45,338 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 19:53:45,339 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 19:53:45,355 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 19:53:45,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:53:45,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:53:45,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:53:45,364 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-10-13 19:53:45,364 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:26, output treesize:45 [2019-10-13 19:53:45,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:53:45,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:53:45,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:53:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:47,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442846191] [2019-10-13 19:53:47,402 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:47,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049315140] [2019-10-13 19:53:47,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1491311186] [2019-10-13 19:53:47,409 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 19 [2019-10-13 19:53:47,452 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:47,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:47,508 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:47,514 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 17 root evaluator evaluations with a maximum evaluation depth of 0. Performed 17 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 25 variables. [2019-10-13 19:53:47,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:47,518 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:47,549 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:47,550 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:47,551 INFO L553 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-13 19:53:47,551 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:47,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:53:47,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 10] total 16 [2019-10-13 19:53:47,552 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598694396] [2019-10-13 19:53:47,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:47,554 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:47,554 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:47,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:47,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:47,555 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 2 states. [2019-10-13 19:53:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:47,557 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-10-13 19:53:47,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:47,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-13 19:53:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:47,558 INFO L225 Difference]: With dead ends: 24 [2019-10-13 19:53:47,558 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:47,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:47,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:47,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:47,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:47,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-13 19:53:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:47,560 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:47,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:47,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:47,764 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:47,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:47,916 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:47,916 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:47,916 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:47,917 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:47,917 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:47,917 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:47,917 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:47,917 INFO L439 ceAbstractionStarter]: At program point L31-2(lines 31 34) the Hoare annotation is: (and (<= 0 main_~j~0) (<= main_~j~0 0) (<= main_~s~0 0)) [2019-10-13 19:53:47,917 INFO L443 ceAbstractionStarter]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2019-10-13 19:53:47,917 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 52) no Hoare annotation was computed. [2019-10-13 19:53:47,918 INFO L439 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: false [2019-10-13 19:53:47,918 INFO L443 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2019-10-13 19:53:47,918 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 48) the Hoare annotation is: (or (and (<= main_~s~0 main_~j~0) (<= main_~j~0 0)) (and (<= main_~q~0 0) (<= 0 main_~i~0) (<= main_~i~0 0))) [2019-10-13 19:53:47,918 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 48) no Hoare annotation was computed. [2019-10-13 19:53:47,918 INFO L439 ceAbstractionStarter]: At program point L29-2(lines 29 36) the Hoare annotation is: (and (<= main_~s~0 main_~j~0) (<= main_~j~0 0)) [2019-10-13 19:53:47,918 INFO L443 ceAbstractionStarter]: For program point L29-3(lines 29 36) no Hoare annotation was computed. [2019-10-13 19:53:47,918 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 52) no Hoare annotation was computed. [2019-10-13 19:53:47,919 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 12 52) the Hoare annotation is: true [2019-10-13 19:53:47,919 INFO L439 ceAbstractionStarter]: At program point L43-2(lines 43 46) the Hoare annotation is: (and (<= 0 main_~j~0) (<= main_~j~0 0) (<= main_~s~0 0)) [2019-10-13 19:53:47,919 INFO L443 ceAbstractionStarter]: For program point L43-3(lines 43 46) no Hoare annotation was computed. [2019-10-13 19:53:47,919 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 19:53:47,919 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:53:47,919 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 19:53:47,920 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 19:53:47,920 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 19:53:47,920 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:53:47,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:47 BoogieIcfgContainer [2019-10-13 19:53:47,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:47,933 INFO L168 Benchmark]: Toolchain (without parser) took 5121.06 ms. Allocated memory was 136.8 MB in the beginning and 229.1 MB in the end (delta: 92.3 MB). Free memory was 100.0 MB in the beginning and 139.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 52.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:47,933 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory is still 118.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 19:53:47,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.41 ms. Allocated memory is still 136.8 MB. Free memory was 100.0 MB in the beginning and 89.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:47,937 INFO L168 Benchmark]: Boogie Preprocessor took 125.11 ms. Allocated memory was 136.8 MB in the beginning and 198.7 MB in the end (delta: 61.9 MB). Free memory was 89.5 MB in the beginning and 176.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:47,938 INFO L168 Benchmark]: RCFGBuilder took 312.69 ms. Allocated memory is still 198.7 MB. Free memory was 176.4 MB in the beginning and 161.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:47,939 INFO L168 Benchmark]: TraceAbstraction took 4396.22 ms. Allocated memory was 198.7 MB in the beginning and 229.1 MB in the end (delta: 30.4 MB). Free memory was 161.1 MB in the beginning and 139.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:47,943 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory is still 118.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 273.41 ms. Allocated memory is still 136.8 MB. Free memory was 100.0 MB in the beginning and 89.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.11 ms. Allocated memory was 136.8 MB in the beginning and 198.7 MB in the end (delta: 61.9 MB). Free memory was 89.5 MB in the beginning and 176.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.69 ms. Allocated memory is still 198.7 MB. Free memory was 176.4 MB in the beginning and 161.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4396.22 ms. Allocated memory was 198.7 MB in the beginning and 229.1 MB in the end (delta: 30.4 MB). Free memory was 161.1 MB in the beginning and 139.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 29]: Loop Invariant Derived loop invariant: s <= j && j <= 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (s <= j && j <= 0) || ((q <= 0 && 0 <= i) && i <= 0) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (0 <= j && j <= 0) && s <= 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (0 <= j && j <= 0) && s <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 52 SDtfs, 51 SDslu, 110 SDs, 0 SdLazy, 65 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 19 NumberOfFragments, 51 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 4991 SizeOfPredicates, 22 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 110, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8676470588235294, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0588235294117647, AVG_WEAKENED_CONJUNCTS: 0.35294117647058826, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...