/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/eca-rers2012/Problem07_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 00:26:19,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 00:26:19,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 00:26:20,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 00:26:20,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 00:26:20,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 00:26:20,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 00:26:20,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 00:26:20,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 00:26:20,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 00:26:20,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 00:26:20,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 00:26:20,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 00:26:20,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 00:26:20,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 00:26:20,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 00:26:20,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 00:26:20,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 00:26:20,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 00:26:20,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 00:26:20,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 00:26:20,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 00:26:20,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 00:26:20,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 00:26:20,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 00:26:20,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 00:26:20,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 00:26:20,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 00:26:20,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 00:26:20,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 00:26:20,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 00:26:20,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 00:26:20,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 00:26:20,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 00:26:20,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 00:26:20,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 00:26:20,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 00:26:20,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 00:26:20,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 00:26:20,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 00:26:20,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 00:26:20,201 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 00:26:20,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 00:26:20,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 00:26:20,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 00:26:20,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 00:26:20,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 00:26:20,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 00:26:20,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 00:26:20,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 00:26:20,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 00:26:20,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 00:26:20,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 00:26:20,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 00:26:20,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 00:26:20,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 00:26:20,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 00:26:20,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 00:26:20,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 00:26:20,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 00:26:20,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 00:26:20,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 00:26:20,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 00:26:20,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 00:26:20,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 00:26:20,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 00:26:20,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 00:26:20,659 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 00:26:20,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label13.c [2020-12-22 00:26:20,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1219de4/35f7bb36c4ab465cab9a648b91d19a71/FLAG8bc7f5c5e [2020-12-22 00:26:24,113 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 00:26:24,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label13.c [2020-12-22 00:26:24,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1219de4/35f7bb36c4ab465cab9a648b91d19a71/FLAG8bc7f5c5e [2020-12-22 00:26:24,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1219de4/35f7bb36c4ab465cab9a648b91d19a71 [2020-12-22 00:26:24,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 00:26:24,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 00:26:24,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 00:26:24,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 00:26:24,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 00:26:24,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:26:24" (1/1) ... [2020-12-22 00:26:24,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2361e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:24, skipping insertion in model container [2020-12-22 00:26:24,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:26:24" (1/1) ... [2020-12-22 00:26:24,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 00:26:25,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 00:26:36,565 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label13.c[2773587,2773600] [2020-12-22 00:26:36,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 00:26:36,637 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 00:26:43,174 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label13.c[2773587,2773600] [2020-12-22 00:26:43,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 00:26:44,286 INFO L208 MainTranslator]: Completed translation [2020-12-22 00:26:44,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44 WrapperNode [2020-12-22 00:26:44,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 00:26:44,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 00:26:44,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 00:26:44,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 00:26:44,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:45,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:48,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 00:26:48,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 00:26:48,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 00:26:48,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 00:26:48,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:48,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:49,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:49,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:51,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:51,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:52,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (1/1) ... [2020-12-22 00:26:52,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 00:26:52,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 00:26:52,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 00:26:52,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 00:26:52,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (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 [2020-12-22 00:26:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 00:26:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 00:26:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 00:26:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 00:27:54,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 00:27:54,184 INFO L299 CfgBuilder]: Removed 97 assume(true) statements. [2020-12-22 00:27:54,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:27:54 BoogieIcfgContainer [2020-12-22 00:27:54,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 00:27:54,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 00:27:54,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 00:27:54,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 00:27:54,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:26:24" (1/3) ... [2020-12-22 00:27:54,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43076bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:27:54, skipping insertion in model container [2020-12-22 00:27:54,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:44" (2/3) ... [2020-12-22 00:27:54,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43076bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:27:54, skipping insertion in model container [2020-12-22 00:27:54,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:27:54" (3/3) ... [2020-12-22 00:27:54,216 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label13.c [2020-12-22 00:27:54,225 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 00:27:54,235 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 00:27:54,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 00:27:54,313 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 00:27:54,313 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 00:27:54,313 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 00:27:54,313 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 00:27:54,314 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 00:27:54,314 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 00:27:54,314 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 00:27:54,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 00:27:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states. [2020-12-22 00:27:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10127 [2020-12-22 00:27:55,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 00:27:55,424 INFO L422 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 00:27:55,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 00:27:55,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 00:27:55,442 INFO L82 PathProgramCache]: Analyzing trace with hash -2144470182, now seen corresponding path program 1 times [2020-12-22 00:27:55,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 00:27:55,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114309063] [2020-12-22 00:27:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 00:27:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat