/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 21:30:53,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 21:30:53,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 21:30:53,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 21:30:53,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 21:30:53,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 21:30:53,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 21:30:53,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 21:30:53,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 21:30:53,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 21:30:53,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 21:30:53,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 21:30:53,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 21:30:53,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 21:30:53,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 21:30:53,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 21:30:53,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 21:30:53,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 21:30:53,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 21:30:53,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 21:30:53,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 21:30:53,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 21:30:53,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 21:30:53,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 21:30:53,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 21:30:53,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 21:30:53,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 21:30:53,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 21:30:53,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 21:30:53,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 21:30:53,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 21:30:53,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 21:30:53,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 21:30:53,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 21:30:53,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 21:30:53,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 21:30:53,360 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 [2019-11-23 21:30:53,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 21:30:53,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 21:30:53,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 21:30:53,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 21:30:53,383 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 21:30:53,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 21:30:53,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 21:30:53,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 21:30:53,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 21:30:53,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 21:30:53,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 21:30:53,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 21:30:53,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 21:30:53,385 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 21:30:53,385 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 21:30:53,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 21:30:53,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 21:30:53,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 21:30:53,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 21:30:53,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 21:30:53,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 21:30:53,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 21:30:53,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:30:53,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 21:30:53,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 21:30:53,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 21:30:53,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 21:30:53,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 21:30:53,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 21:30:53,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 21:30:53,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 21:30:53,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 21:30:53,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 21:30:53,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 21:30:53,679 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 21:30:53,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2019-11-23 21:30:53,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4af2a1b/56a11dc45f7743bbaecb3d24dbd65042/FLAG4780f5232 [2019-11-23 21:30:54,266 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 21:30:54,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2019-11-23 21:30:54,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4af2a1b/56a11dc45f7743bbaecb3d24dbd65042/FLAG4780f5232 [2019-11-23 21:30:54,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4af2a1b/56a11dc45f7743bbaecb3d24dbd65042 [2019-11-23 21:30:54,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 21:30:54,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 21:30:54,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 21:30:54,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 21:30:54,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 21:30:54,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:54" (1/1) ... [2019-11-23 21:30:54,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e46584f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:54, skipping insertion in model container [2019-11-23 21:30:54,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:54" (1/1) ... [2019-11-23 21:30:54,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 21:30:54,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 21:30:55,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:30:55,142 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 21:30:55,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:30:55,299 INFO L208 MainTranslator]: Completed translation [2019-11-23 21:30:55,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55 WrapperNode [2019-11-23 21:30:55,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 21:30:55,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 21:30:55,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 21:30:55,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 21:30:55,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 21:30:55,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 21:30:55,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 21:30:55,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 21:30:55,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (1/1) ... [2019-11-23 21:30:55,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 21:30:55,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 21:30:55,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 21:30:55,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 21:30:55,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (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 [2019-11-23 21:30:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-23 21:30:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2019-11-23 21:30:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2019-11-23 21:30:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 21:30:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-23 21:30:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-23 21:30:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-23 21:30:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-23 21:30:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 21:30:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-23 21:30:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2019-11-23 21:30:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2019-11-23 21:30:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2019-11-23 21:30:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2019-11-23 21:30:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 21:30:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 21:30:56,387 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 21:30:56,388 INFO L284 CfgBuilder]: Removed 148 assume(true) statements. [2019-11-23 21:30:56,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:56 BoogieIcfgContainer [2019-11-23 21:30:56,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 21:30:56,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 21:30:56,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 21:30:56,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 21:30:56,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:54" (1/3) ... [2019-11-23 21:30:56,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7c3612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:56, skipping insertion in model container [2019-11-23 21:30:56,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:55" (2/3) ... [2019-11-23 21:30:56,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7c3612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:56, skipping insertion in model container [2019-11-23 21:30:56,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:56" (3/3) ... [2019-11-23 21:30:56,400 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2019-11-23 21:30:56,411 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 21:30:56,419 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 26 error locations. [2019-11-23 21:30:56,429 INFO L249 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2019-11-23 21:30:56,457 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 21:30:56,458 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 21:30:56,478 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 21:30:56,480 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 21:30:56,480 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 21:30:56,480 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 21:30:56,480 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 21:30:56,481 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 21:30:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2019-11-23 21:30:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-23 21:30:56,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:30:56,526 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:30:56,527 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:30:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:30:56,533 INFO L82 PathProgramCache]: Analyzing trace with hash 235077082, now seen corresponding path program 1 times [2019-11-23 21:30:56,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:30:56,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455817041] [2019-11-23 21:30:56,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:30:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-23 21:30:56,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455817041] [2019-11-23 21:30:56,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:30:56,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 21:30:56,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805708131] [2019-11-23 21:30:56,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:30:56,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:30:56,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:30:56,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:30:56,895 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2019-11-23 21:30:57,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:30:57,128 INFO L93 Difference]: Finished difference Result 387 states and 611 transitions. [2019-11-23 21:30:57,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:30:57,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-11-23 21:30:57,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:30:57,144 INFO L225 Difference]: With dead ends: 387 [2019-11-23 21:30:57,144 INFO L226 Difference]: Without dead ends: 189 [2019-11-23 21:30:57,149 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:30:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-11-23 21:30:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2019-11-23 21:30:57,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-11-23 21:30:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 205 transitions. [2019-11-23 21:30:57,249 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 205 transitions. Word has length 32 [2019-11-23 21:30:57,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:30:57,250 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 205 transitions. [2019-11-23 21:30:57,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:30:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 205 transitions. [2019-11-23 21:30:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-23 21:30:57,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:30:57,255 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:30:57,255 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:30:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:30:57,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1381037844, now seen corresponding path program 1 times [2019-11-23 21:30:57,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:30:57,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543124068] [2019-11-23 21:30:57,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:30:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-23 21:30:57,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543124068] [2019-11-23 21:30:57,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695077603] [2019-11-23 21:30:57,614 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 [2019-11-23 21:30:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:57,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-23 21:30:57,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:30:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-23 21:30:57,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 21:30:57,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 9 [2019-11-23 21:30:57,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326381869] [2019-11-23 21:30:57,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-23 21:30:57,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:30:57,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-23 21:30:57,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-23 21:30:57,811 INFO L87 Difference]: Start difference. First operand 189 states and 205 transitions. Second operand 9 states. [2019-11-23 21:30:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:30:58,282 INFO L93 Difference]: Finished difference Result 388 states and 436 transitions. [2019-11-23 21:30:58,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 21:30:58,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2019-11-23 21:30:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:30:58,288 INFO L225 Difference]: With dead ends: 388 [2019-11-23 21:30:58,288 INFO L226 Difference]: Without dead ends: 202 [2019-11-23 21:30:58,293 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-23 21:30:58,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-11-23 21:30:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2019-11-23 21:30:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-11-23 21:30:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 220 transitions. [2019-11-23 21:30:58,335 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 220 transitions. Word has length 33 [2019-11-23 21:30:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:30:58,335 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 220 transitions. [2019-11-23 21:30:58,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-23 21:30:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 220 transitions. [2019-11-23 21:30:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-11-23 21:30:58,342 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:30:58,343 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:30:58,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:30:58,545 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:30:58,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:30:58,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1343163818, now seen corresponding path program 1 times [2019-11-23 21:30:58,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:30:58,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130618763] [2019-11-23 21:30:58,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:30:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 10 proven. 48 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-23 21:30:59,695 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130618763] [2019-11-23 21:30:59,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374326456] [2019-11-23 21:30:59,696 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 [2019-11-23 21:30:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:30:59,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-23 21:30:59,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:31:00,123 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 21:31:00,123 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 47 [2019-11-23 21:31:00,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-23 21:31:00,155 INFO L567 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2019-11-23 21:31:00,157 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-23 21:31:00,157 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2019-11-23 21:31:00,256 INFO L377 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 16 treesize of output 8 [2019-11-23 21:31:00,258 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-23 21:31:00,273 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 21:31:00,273 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-23 21:31:00,273 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-11-23 21:31:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 5 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-11-23 21:31:00,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 21:31:00,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 23 [2019-11-23 21:31:00,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791125351] [2019-11-23 21:31:00,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-23 21:31:00,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:31:00,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-23 21:31:00,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2019-11-23 21:31:00,313 INFO L87 Difference]: Start difference. First operand 202 states and 220 transitions. Second operand 23 states. [2019-11-23 21:31:02,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:31:02,336 INFO L93 Difference]: Finished difference Result 412 states and 459 transitions. [2019-11-23 21:31:02,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-23 21:31:02,337 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 103 [2019-11-23 21:31:02,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:31:02,339 INFO L225 Difference]: With dead ends: 412 [2019-11-23 21:31:02,339 INFO L226 Difference]: Without dead ends: 211 [2019-11-23 21:31:02,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=168, Invalid=1554, Unknown=0, NotChecked=0, Total=1722 [2019-11-23 21:31:02,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2019-11-23 21:31:02,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2019-11-23 21:31:02,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-11-23 21:31:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 227 transitions. [2019-11-23 21:31:02,357 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 227 transitions. Word has length 103 [2019-11-23 21:31:02,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:31:02,357 INFO L462 AbstractCegarLoop]: Abstraction has 208 states and 227 transitions. [2019-11-23 21:31:02,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-23 21:31:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 227 transitions. [2019-11-23 21:31:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-23 21:31:02,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:31:02,360 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:31:02,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:31:02,565 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:31:02,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:31:02,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1701628438, now seen corresponding path program 1 times [2019-11-23 21:31:02,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:31:02,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331743613] [2019-11-23 21:31:02,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:31:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-11-23 21:31:03,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331743613] [2019-11-23 21:31:03,274 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568427001] [2019-11-23 21:31:03,274 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 [2019-11-23 21:31:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:03,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 58 conjunts are in the unsatisfiable core [2019-11-23 21:31:03,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 21:31:03,443 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-23 21:31:03,443 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-23 21:31:03,458 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 21:31:03,458 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 21:31:03,459 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2019-11-23 21:31:05,695 WARN L192 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 35 [2019-11-23 21:31:05,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 21:31:06,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 21:31:06,175 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 21:31:06,175 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-23 21:31:06,180 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 21:31:06,181 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-23 21:31:06,182 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 21:31:06,184 INFO L464 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.base)_AFTER_CALL_22| vanished before elimination [2019-11-23 21:31:06,184 INFO L464 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.offset)_AFTER_CALL_22| vanished before elimination [2019-11-23 21:31:06,185 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-23 21:31:06,185 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:103, output treesize:1 [2019-11-23 21:31:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 90 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-23 21:31:06,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 21:31:06,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2019-11-23 21:31:06,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319812001] [2019-11-23 21:31:06,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-23 21:31:06,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:31:06,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-23 21:31:06,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2019-11-23 21:31:06,218 INFO L87 Difference]: Start difference. First operand 208 states and 227 transitions. Second operand 19 states. [2019-11-23 21:31:08,593 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 47 [2019-11-23 21:31:10,935 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-11-23 21:31:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:31:11,719 INFO L93 Difference]: Finished difference Result 414 states and 453 transitions. [2019-11-23 21:31:11,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-23 21:31:11,719 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 106 [2019-11-23 21:31:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:31:11,722 INFO L225 Difference]: With dead ends: 414 [2019-11-23 21:31:11,722 INFO L226 Difference]: Without dead ends: 214 [2019-11-23 21:31:11,723 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 120 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2019-11-23 21:31:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-11-23 21:31:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2019-11-23 21:31:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-11-23 21:31:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 232 transitions. [2019-11-23 21:31:11,739 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 232 transitions. Word has length 106 [2019-11-23 21:31:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:31:11,739 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 232 transitions. [2019-11-23 21:31:11,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-23 21:31:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 232 transitions. [2019-11-23 21:31:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-23 21:31:11,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:31:11,742 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 21:31:11,945 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 21:31:11,947 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:31:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:31:11,948 INFO L82 PathProgramCache]: Analyzing trace with hash 974363944, now seen corresponding path program 1 times [2019-11-23 21:31:11,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:31:11,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576025855] [2019-11-23 21:31:11,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:31:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:14,049 WARN L192 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 26 [2019-11-23 21:31:15,318 WARN L192 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 163 DAG size of output: 39 [2019-11-23 21:31:19,055 WARN L192 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 365 DAG size of output: 31 [2019-11-23 21:31:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:22,345 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-23 21:31:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:23,392 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-11-23 21:31:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:31:42,849 WARN L192 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 472 DAG size of output: 47