/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/seq-mthreaded/rekh_nxt.1.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:44:30,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:44:30,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:44:30,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:44:30,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:44:30,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:44:30,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:44:30,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:44:30,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:44:30,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:44:30,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:44:30,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:44:30,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:44:30,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:44:30,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:44:30,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:44:30,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:44:30,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:44:30,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:44:30,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:44:30,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:44:30,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:44:30,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:44:30,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:44:30,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:44:30,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:44:30,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:44:30,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:44:30,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:44:30,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:44:30,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:44:30,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:44:30,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:44:30,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:44:30,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:44:30,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:44:30,444 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 22:44:30,459 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:44:30,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:44:30,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:44:30,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:44:30,460 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:44:30,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:44:30,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:44:30,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:44:30,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:44:30,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:44:30,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:44:30,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:44:30,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:44:30,462 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:44:30,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:44:30,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:44:30,463 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:44:30,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:44:30,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:44:30,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:44:30,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:44:30,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:44:30,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:44:30,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:44:30,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:44:30,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:44:30,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:44:30,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:44:30,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:44:30,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:44:30,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:44:30,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:44:30,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:44:30,766 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:44:30,766 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:44:30,767 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M1-1.c [2019-11-23 22:44:30,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/184db6790/c1a08cca844245f79f8d509de7acccb2/FLAG0bd055ad3 [2019-11-23 22:44:31,490 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:44:31,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M1-1.c [2019-11-23 22:44:31,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/184db6790/c1a08cca844245f79f8d509de7acccb2/FLAG0bd055ad3 [2019-11-23 22:44:31,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/184db6790/c1a08cca844245f79f8d509de7acccb2 [2019-11-23 22:44:31,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:44:31,700 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:44:31,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:44:31,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:44:31,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:44:31,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:44:31" (1/1) ... [2019-11-23 22:44:31,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c910224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:31, skipping insertion in model container [2019-11-23 22:44:31,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:44:31" (1/1) ... [2019-11-23 22:44:31,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:44:31,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:44:32,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:44:32,598 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:44:32,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:44:32,978 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:44:32,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32 WrapperNode [2019-11-23 22:44:32,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:44:32,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:44:32,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:44:32,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:44:32,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:33,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:34,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:44:34,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:44:34,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:44:34,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:44:34,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:34,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:35,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:35,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:36,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:36,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:36,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (1/1) ... [2019-11-23 22:44:36,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:44:36,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:44:36,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:44:36,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:44:36,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (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 22:44:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:44:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:44:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 22:44:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:44:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-23 22:44:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:44:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:45:12,273 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:45:12,274 INFO L284 CfgBuilder]: Removed 1846 assume(true) statements. [2019-11-23 22:45:12,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:45:12 BoogieIcfgContainer [2019-11-23 22:45:12,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:45:12,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:45:12,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:45:12,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:45:12,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:44:31" (1/3) ... [2019-11-23 22:45:12,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ba5ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:45:12, skipping insertion in model container [2019-11-23 22:45:12,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:44:32" (2/3) ... [2019-11-23 22:45:12,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ba5ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:45:12, skipping insertion in model container [2019-11-23 22:45:12,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:45:12" (3/3) ... [2019-11-23 22:45:12,289 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M1-1.c [2019-11-23 22:45:12,297 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:45:12,307 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:45:12,318 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:45:12,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:45:12,389 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:45:12,390 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:45:12,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:45:12,391 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:45:12,392 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:45:12,392 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:45:12,392 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:45:12,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12977 states. [2019-11-23 22:45:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2019-11-23 22:45:12,599 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:45:12,600 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:45:12,601 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:45:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:45:12,608 INFO L82 PathProgramCache]: Analyzing trace with hash 2146021094, now seen corresponding path program 1 times [2019-11-23 22:45:12,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:45:12,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691419191] [2019-11-23 22:45:12,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:45:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat