/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_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 00:36:20,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 00:36:20,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 00:36:20,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 00:36:20,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 00:36:20,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 00:36:20,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 00:36:20,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 00:36:20,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 00:36:20,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 00:36:20,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 00:36:20,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 00:36:20,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 00:36:20,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 00:36:20,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 00:36:20,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 00:36:20,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 00:36:20,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 00:36:20,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 00:36:20,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 00:36:20,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 00:36:20,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 00:36:20,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 00:36:20,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 00:36:20,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 00:36:20,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 00:36:20,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 00:36:20,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 00:36:20,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 00:36:20,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 00:36:20,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 00:36:20,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 00:36:20,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 00:36:20,401 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 00:36:20,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 00:36:20,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 00:36:20,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 00:36:20,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 00:36:20,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 00:36:20,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 00:36:20,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 00:36:20,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 00:36:20,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 00:36:20,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 00:36:20,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 00:36:20,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 00:36:20,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 00:36:20,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 00:36:20,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 00:36:20,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 00:36:20,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 00:36:20,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 00:36:20,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 00:36:20,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 00:36:20,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 00:36:20,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 00:36:20,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 00:36:20,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 00:36:20,822 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 00:36:20,823 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 00:36:20,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label49.c [2020-12-22 00:36:20,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb2ddabf/138bef375e4d4645ab1ef915b5531cab/FLAGe999b7a20 [2020-12-22 00:36:24,068 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 00:36:24,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label49.c [2020-12-22 00:36:24,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb2ddabf/138bef375e4d4645ab1ef915b5531cab/FLAGe999b7a20 [2020-12-22 00:36:24,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb2ddabf/138bef375e4d4645ab1ef915b5531cab [2020-12-22 00:36:24,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 00:36:24,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 00:36:24,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 00:36:24,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 00:36:24,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 00:36:24,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:36:24" (1/1) ... [2020-12-22 00:36:24,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29cde377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:24, skipping insertion in model container [2020-12-22 00:36:24,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:36:24" (1/1) ... [2020-12-22 00:36:24,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 00:36:25,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 00:36:37,459 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_label49.c[2771201,2771214] [2020-12-22 00:36:37,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 00:36:37,551 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 00:36:44,003 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_label49.c[2771201,2771214] [2020-12-22 00:36:44,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 00:36:45,313 INFO L208 MainTranslator]: Completed translation [2020-12-22 00:36:45,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45 WrapperNode [2020-12-22 00:36:45,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 00:36:45,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 00:36:45,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 00:36:45,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 00:36:45,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:46,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:49,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 00:36:49,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 00:36:49,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 00:36:49,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 00:36:49,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:49,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:50,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:50,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:52,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:52,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:53,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (1/1) ... [2020-12-22 00:36:53,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 00:36:53,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 00:36:53,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 00:36:53,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 00:36:53,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (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 00:36:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 00:36:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 00:36:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 00:36:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 00:37:46,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 00:37:46,568 INFO L299 CfgBuilder]: Removed 97 assume(true) statements. [2020-12-22 00:37:46,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:37:46 BoogieIcfgContainer [2020-12-22 00:37:46,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 00:37:46,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 00:37:46,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 00:37:46,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 00:37:46,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:36:24" (1/3) ... [2020-12-22 00:37:46,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8fb38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:37:46, skipping insertion in model container [2020-12-22 00:37:46,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:36:45" (2/3) ... [2020-12-22 00:37:46,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8fb38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:37:46, skipping insertion in model container [2020-12-22 00:37:46,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:37:46" (3/3) ... [2020-12-22 00:37:46,591 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label49.c [2020-12-22 00:37:46,597 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 00:37:46,607 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 00:37:46,625 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 00:37:46,686 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 00:37:46,687 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 00:37:46,687 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 00:37:46,687 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 00:37:46,687 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 00:37:46,687 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 00:37:46,687 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 00:37:46,687 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 00:37:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states. [2020-12-22 00:37:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10113 [2020-12-22 00:37:48,015 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 00:37:48,023 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] [2020-12-22 00:37:48,024 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 00:37:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 00:37:48,040 INFO L82 PathProgramCache]: Analyzing trace with hash -626776830, now seen corresponding path program 1 times [2020-12-22 00:37:48,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 00:37:48,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113844110] [2020-12-22 00:37:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 00:37:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 00:39:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 00:39:40,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113844110] [2020-12-22 00:39:40,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 00:39:40,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 00:39:40,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736076031] [2020-12-22 00:39:40,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 00:39:40,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 00:39:40,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 00:39:40,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 00:39:40,085 INFO L87 Difference]: Start difference. First operand 10257 states. Second operand 3 states.