/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/heavy-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:02:55,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:02:55,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:02:55,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:02:55,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:02:55,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:02:55,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:02:55,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:02:55,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:02:55,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:02:55,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:02:55,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:02:55,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:02:55,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:02:55,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:02:55,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:02:55,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:02:55,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:02:55,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:02:55,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:02:55,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:02:55,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:02:55,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:02:55,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:02:55,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 04:02:55,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:02:55,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:02:55,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:02:55,674 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 [2019-11-07 04:02:55,688 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:02:55,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:02:55,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:02:55,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:02:55,689 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:02:55,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:02:55,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:02:55,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:02:55,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:02:55,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:02:55,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:02:55,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:02:55,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:02:55,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:02:55,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:02:55,692 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:02:55,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:02:55,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:02:55,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:02:55,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:02:55,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:02:55,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:02:55,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:02:55,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:02:55,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:02:55,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:02:55,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:02:55,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:02:55,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:02:55,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:02:56,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:02:56,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:02:56,024 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:02:56,024 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:02:56,025 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/heavy-2.c [2019-11-07 04:02:56,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c38fb92/78fab0ed4ed24970b0d43acc9d96be44/FLAG2c660ba69 [2019-11-07 04:02:56,611 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:02:56,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/heavy-2.c [2019-11-07 04:02:56,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c38fb92/78fab0ed4ed24970b0d43acc9d96be44/FLAG2c660ba69 [2019-11-07 04:02:56,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c38fb92/78fab0ed4ed24970b0d43acc9d96be44 [2019-11-07 04:02:57,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:02:57,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:02:57,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:02:57,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:02:57,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:02:57,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:02:56" (1/1) ... [2019-11-07 04:02:57,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62dbf990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57, skipping insertion in model container [2019-11-07 04:02:57,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:02:56" (1/1) ... [2019-11-07 04:02:57,028 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:02:57,048 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:02:57,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:02:57,397 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:02:57,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:02:57,579 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:02:57,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57 WrapperNode [2019-11-07 04:02:57,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:02:57,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:02:57,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:02:57,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:02:57,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (1/1) ... [2019-11-07 04:02:57,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:02:57,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:02:57,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:02:57,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:02:57,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (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 [2019-11-07 04:02:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:02:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:02:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:02:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:02:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:02:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:02:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:02:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:02:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:02:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 04:02:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:02:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:02:58,009 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:02:58,010 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-07 04:02:58,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:02:58 BoogieIcfgContainer [2019-11-07 04:02:58,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:02:58,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:02:58,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:02:58,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:02:58,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:02:56" (1/3) ... [2019-11-07 04:02:58,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c8830a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:02:58, skipping insertion in model container [2019-11-07 04:02:58,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:57" (2/3) ... [2019-11-07 04:02:58,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c8830a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:02:58, skipping insertion in model container [2019-11-07 04:02:58,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:02:58" (3/3) ... [2019-11-07 04:02:58,020 INFO L109 eAbstractionObserver]: Analyzing ICFG heavy-2.c [2019-11-07 04:02:58,030 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:02:58,038 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:02:58,050 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:02:58,084 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:02:58,084 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:02:58,084 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:02:58,084 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:02:58,085 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:02:58,085 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:02:58,085 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:02:58,085 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:02:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-07 04:02:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-07 04:02:58,110 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:02:58,111 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:02:58,113 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:02:58,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:02:58,119 INFO L82 PathProgramCache]: Analyzing trace with hash -12510755, now seen corresponding path program 1 times [2019-11-07 04:02:58,127 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:02:58,127 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429287681] [2019-11-07 04:02:58,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:02:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:58,301 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429287681] [2019-11-07 04:02:58,302 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:02:58,302 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:02:58,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16639263] [2019-11-07 04:02:58,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:02:58,309 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:02:58,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:02:58,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:02:58,322 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-07 04:02:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:02:58,376 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2019-11-07 04:02:58,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:02:58,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-07 04:02:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:02:58,386 INFO L225 Difference]: With dead ends: 25 [2019-11-07 04:02:58,386 INFO L226 Difference]: Without dead ends: 14 [2019-11-07 04:02:58,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:02:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-07 04:02:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2019-11-07 04:02:58,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-07 04:02:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-07 04:02:58,422 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-11-07 04:02:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:02:58,423 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-07 04:02:58,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:02:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-07 04:02:58,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 04:02:58,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:02:58,424 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:02:58,424 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:02:58,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:02:58,425 INFO L82 PathProgramCache]: Analyzing trace with hash 821858575, now seen corresponding path program 1 times [2019-11-07 04:02:58,425 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:02:58,426 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497664780] [2019-11-07 04:02:58,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:02:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:58,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:58,484 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497664780] [2019-11-07 04:02:58,485 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:02:58,485 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:02:58,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888144074] [2019-11-07 04:02:58,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:02:58,487 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:02:58,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:02:58,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:02:58,488 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-11-07 04:02:58,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:02:58,516 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2019-11-07 04:02:58,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:02:58,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-07 04:02:58,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:02:58,518 INFO L225 Difference]: With dead ends: 20 [2019-11-07 04:02:58,518 INFO L226 Difference]: Without dead ends: 14 [2019-11-07 04:02:58,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:02:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-07 04:02:58,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-07 04:02:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-07 04:02:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-07 04:02:58,523 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2019-11-07 04:02:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:02:58,524 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-07 04:02:58,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:02:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-07 04:02:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 04:02:58,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:02:58,525 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:02:58,525 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:02:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:02:58,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1551678377, now seen corresponding path program 1 times [2019-11-07 04:02:58,526 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:02:58,526 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088079153] [2019-11-07 04:02:58,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:02:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:58,634 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088079153] [2019-11-07 04:02:58,634 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600694289] [2019-11-07 04:02:58,635 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 [2019-11-07 04:02:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:58,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 04:02:58,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:02:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:58,724 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:02:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:58,752 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:02:58,752 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [4] total 7 [2019-11-07 04:02:58,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191810690] [2019-11-07 04:02:58,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:02:58,753 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:02:58,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:02:58,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:02:58,754 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 5 states. [2019-11-07 04:02:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:02:58,837 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2019-11-07 04:02:58,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:02:58,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-07 04:02:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:02:58,840 INFO L225 Difference]: With dead ends: 27 [2019-11-07 04:02:58,841 INFO L226 Difference]: Without dead ends: 20 [2019-11-07 04:02:58,841 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:02:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-07 04:02:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2019-11-07 04:02:58,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-07 04:02:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-07 04:02:58,850 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2019-11-07 04:02:58,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:02:58,853 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-07 04:02:58,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:02:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-07 04:02:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 04:02:58,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:02:58,855 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:02:59,067 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:02:59,067 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:02:59,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:02:59,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1033585897, now seen corresponding path program 1 times [2019-11-07 04:02:59,069 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:02:59,069 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560676677] [2019-11-07 04:02:59,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:02:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:59,272 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560676677] [2019-11-07 04:02:59,273 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917297048] [2019-11-07 04:02:59,273 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 [2019-11-07 04:02:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:59,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-07 04:02:59,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:02:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:02:59,369 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:02:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:02:59,466 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2123910337] [2019-11-07 04:02:59,491 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-07 04:02:59,492 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:02:59,498 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:02:59,505 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:02:59,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:02:59,748 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2019-11-07 04:03:00,517 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:00,594 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:00,671 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:00,771 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:00,843 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:00,916 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:00,992 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,084 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,145 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,209 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,272 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,337 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,554 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,628 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,715 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,839 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:01,937 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,020 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,312 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,386 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,641 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,707 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,772 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,839 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,903 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:02,980 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:03,050 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:03,106 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,157 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,217 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,265 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,314 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,763 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,807 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,857 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,923 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:04,971 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,026 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,070 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,119 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,169 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,212 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,255 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,297 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,354 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,405 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,452 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,500 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,542 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,595 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,663 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,721 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,783 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,826 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,869 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,909 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:05,951 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:08,124 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse1 (mod (+ main_~k~0 4294967295) 4294967296)) (.cse0 (select |v_#memory_int_29| |~#array~0.base|))) (= (select .cse0 (+ .cse1 |~#array~0.offset| (- 4294967296))) (mod (+ (select .cse0 (+ .cse1 |~#array~0.offset|)) (select .cse0 (+ |~#array~0.offset| (mod main_~j~0 4294967296)))) 256))) [2019-11-07 04:03:08,253 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:08,299 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:08,681 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:09,207 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:09,251 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:09,297 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:09,590 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:11,809 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (select |v_#memory_int_29| |~#array~0.base|)) (.cse1 (mod (+ main_~k~0 4294967295) 4294967296))) (= (select .cse0 (+ .cse1 |~#array~0.offset|)) (select .cse0 (+ .cse1 |~#array~0.offset| (- 4294967296))))) [2019-11-07 04:03:11,957 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,004 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,050 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,097 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,142 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,420 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,469 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,719 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,767 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:12,817 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,170 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,216 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,272 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,323 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,390 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,434 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,493 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,553 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,603 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,643 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,887 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,928 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:13,975 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,018 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,059 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,301 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,343 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,386 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,431 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,474 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,525 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,572 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,632 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,672 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,713 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,757 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,795 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,837 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,874 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,912 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:14,961 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,004 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,202 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,256 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,296 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,339 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,390 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:15,448 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:17,351 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-07 04:03:17,472 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:17,625 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:17,835 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:17,864 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:18,331 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:18,364 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:18,718 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:18,861 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:19,163 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 04:03:19,288 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 22 for LOIs [2019-11-07 04:03:19,291 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 04:03:19,708 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 04:03:19,708 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6, 8] total 20 [2019-11-07 04:03:19,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562347296] [2019-11-07 04:03:19,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-07 04:03:19,710 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:03:19,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-07 04:03:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:03:19,712 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 20 states. [2019-11-07 04:03:20,074 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-11-07 04:03:21,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:03:21,101 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2019-11-07 04:03:21,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-07 04:03:21,101 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 14 [2019-11-07 04:03:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:03:21,103 INFO L225 Difference]: With dead ends: 47 [2019-11-07 04:03:21,103 INFO L226 Difference]: Without dead ends: 38 [2019-11-07 04:03:21,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-07 04:03:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-07 04:03:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-11-07 04:03:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-07 04:03:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2019-11-07 04:03:21,114 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 14 [2019-11-07 04:03:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:03:21,114 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2019-11-07 04:03:21,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-07 04:03:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2019-11-07 04:03:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-07 04:03:21,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:03:21,116 INFO L410 BasicCegarLoop]: trace histogram [12, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:03:21,316 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:03:21,317 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:03:21,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:03:21,318 INFO L82 PathProgramCache]: Analyzing trace with hash 83697117, now seen corresponding path program 2 times [2019-11-07 04:03:21,318 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:03:21,318 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654301679] [2019-11-07 04:03:21,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:03:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:03:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 59 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-11-07 04:03:21,552 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654301679] [2019-11-07 04:03:21,552 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365260241] [2019-11-07 04:03:21,553 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-11-07 04:03:21,607 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-11-07 04:03:21,607 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 04:03:21,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:03:21,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:03:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2019-11-07 04:03:21,624 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:03:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2019-11-07 04:03:21,642 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:03:21,642 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2019-11-07 04:03:21,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625368582] [2019-11-07 04:03:21,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:03:21,643 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:03:21,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:03:21,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:03:21,644 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 4 states. [2019-11-07 04:03:21,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:03:21,650 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2019-11-07 04:03:21,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:03:21,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-07 04:03:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:03:21,651 INFO L225 Difference]: With dead ends: 37 [2019-11-07 04:03:21,651 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 04:03:21,652 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:03:21,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 04:03:21,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 04:03:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 04:03:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 04:03:21,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2019-11-07 04:03:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:03:21,653 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 04:03:21,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:03:21,654 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 04:03:21,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 04:03:21,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:03:21,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 04:03:22,125 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-11-07 04:03:22,263 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-11-07 04:03:22,337 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~#array~0.base)| |~#array~0.base|) (= |~#array~0.offset| |old(~#array~0.offset)|) (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|)) [2019-11-07 04:03:22,338 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:03:22,338 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:03:22,338 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1048576 (select |#length| |~#array~0.base|)) (<= |#NULL.base| 0) (< |~#array~0.base| |#StackHeapBarrier|) (= (store ((as const (Array Int Int)) 0) |~#array~0.offset| 1) (select |#memory_int| |~#array~0.base|)) (= 0 (select |#valid| 0)) (= (select |#valid| |~#array~0.base|) 1) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (= 0 |~#array~0.offset|)) [2019-11-07 04:03:22,338 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 04:03:22,338 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 04:03:22,338 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 5 21) no Hoare annotation was computed. [2019-11-07 04:03:22,338 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 5 21) no Hoare annotation was computed. [2019-11-07 04:03:22,339 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (or (not (= (select |old(#memory_int)| |~#array~0.base|) (store ((as const (Array Int Int)) 0) |~#array~0.offset| 1))) (not (= 0 |~#array~0.offset|)) (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 1 (select |#valid| |~#array~0.base|))) (not (= 0 (select |#valid| 0))) (not (<= |#NULL.base| 0)) (not (= 1048576 (select |#length| |~#array~0.base|))) (not (< |~#array~0.base| |#StackHeapBarrier|)) (and (< (mod main_~i~0 4294967296) 1048576) (or (and (= |main_#in~argv.base| main_~argv.base) (= |main_#in~argc| main_~argc) (= |main_#in~argv.offset| main_~argv.offset) (= main_~j~0 0) (= |#memory_int| |old(#memory_int)|) (= main_~i~0 0)) (<= 1048576 (mod main_~k~0 4294967296))) (= main_~a~0 1))) [2019-11-07 04:03:22,339 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 5 21) the Hoare annotation is: (or (not (= (select |old(#memory_int)| |~#array~0.base|) (store ((as const (Array Int Int)) 0) |~#array~0.offset| 1))) (not (= 0 |~#array~0.offset|)) (= |#memory_int| |old(#memory_int)|) (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 1 (select |#valid| |~#array~0.base|))) (not (= 0 (select |#valid| 0))) (not (<= |#NULL.base| 0)) (not (= 1048576 (select |#length| |~#array~0.base|))) (not (< |~#array~0.base| |#StackHeapBarrier|))) [2019-11-07 04:03:22,339 INFO L439 ceAbstractionStarter]: At program point L16(lines 6 21) the Hoare annotation is: (or (not (= (select |old(#memory_int)| |~#array~0.base|) (store ((as const (Array Int Int)) 0) |~#array~0.offset| 1))) (not (= 0 |~#array~0.offset|)) (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 1 (select |#valid| |~#array~0.base|))) (not (= 0 (select |#valid| 0))) (not (<= |#NULL.base| 0)) (not (= 1048576 (select |#length| |~#array~0.base|))) (not (< |~#array~0.base| |#StackHeapBarrier|))) [2019-11-07 04:03:22,339 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2019-11-07 04:03:22,339 INFO L439 ceAbstractionStarter]: At program point L12-3(lines 12 13) the Hoare annotation is: (or (not (= (select |old(#memory_int)| |~#array~0.base|) (store ((as const (Array Int Int)) 0) |~#array~0.offset| 1))) (not (= 0 |~#array~0.offset|)) (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 1 (select |#valid| |~#array~0.base|))) (not (= 0 (select |#valid| 0))) (not (<= |#NULL.base| 0)) (not (= 1048576 (select |#length| |~#array~0.base|))) (and (< (mod main_~i~0 4294967296) 1048576) (= main_~a~0 1)) (not (< |~#array~0.base| |#StackHeapBarrier|))) [2019-11-07 04:03:22,340 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 13) the Hoare annotation is: (let ((.cse0 (= main_~a~0 1))) (or (not (= (select |old(#memory_int)| |~#array~0.base|) (store ((as const (Array Int Int)) 0) |~#array~0.offset| 1))) (not (= 0 |~#array~0.offset|)) (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 1 (select |#valid| |~#array~0.base|))) (not (= 0 (select |#valid| 0))) (not (<= |#NULL.base| 0)) (not (= 1048576 (select |#length| |~#array~0.base|))) (and (<= 1048576 (mod main_~k~0 4294967296)) .cse0) (not (< |~#array~0.base| |#StackHeapBarrier|)) (and .cse0 (= |#memory_int| |old(#memory_int)|) (= main_~i~0 0)))) [2019-11-07 04:03:22,340 INFO L443 ceAbstractionStarter]: For program point L10-4(lines 6 21) no Hoare annotation was computed. [2019-11-07 04:03:22,345 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translateStore(Term2Expression.java:312) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:157) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:555) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:255) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:212) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-07 04:03:22,348 INFO L168 Benchmark]: Toolchain (without parser) took 25340.18 ms. Allocated memory was 134.7 MB in the beginning and 492.8 MB in the end (delta: 358.1 MB). Free memory was 98.8 MB in the beginning and 343.3 MB in the end (delta: -244.4 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:22,349 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 04:03:22,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.53 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 98.6 MB in the beginning and 160.1 MB in the end (delta: -61.5 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:22,350 INFO L168 Benchmark]: Boogie Preprocessor took 42.02 ms. Allocated memory is still 199.2 MB. Free memory was 160.1 MB in the beginning and 158.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:22,351 INFO L168 Benchmark]: RCFGBuilder took 388.60 ms. Allocated memory is still 199.2 MB. Free memory was 158.6 MB in the beginning and 141.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:22,351 INFO L168 Benchmark]: TraceAbstraction took 24334.19 ms. Allocated memory was 199.2 MB in the beginning and 492.8 MB in the end (delta: 293.6 MB). Free memory was 140.3 MB in the beginning and 343.3 MB in the end (delta: -203.0 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:22,362 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 568.53 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 98.6 MB in the beginning and 160.1 MB in the end (delta: -61.5 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.02 ms. Allocated memory is still 199.2 MB. Free memory was 160.1 MB in the beginning and 158.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 388.60 ms. Allocated memory is still 199.2 MB. Free memory was 158.6 MB in the beginning and 141.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24334.19 ms. Allocated memory was 199.2 MB in the beginning and 492.8 MB in the end (delta: 293.6 MB). Free memory was 140.3 MB in the beginning and 343.3 MB in the end (delta: -203.0 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...