java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 21:55:16,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 21:55:16,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 21:55:16,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 21:55:16,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 21:55:16,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 21:55:16,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 21:55:16,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 21:55:16,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 21:55:16,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 21:55:16,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 21:55:16,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 21:55:16,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 21:55:16,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 21:55:16,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 21:55:16,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 21:55:16,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 21:55:16,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 21:55:16,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 21:55:16,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 21:55:16,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 21:55:16,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 21:55:16,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 21:55:16,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 21:55:16,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 21:55:16,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 21:55:16,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 21:55:16,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 21:55:16,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 21:55:16,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 21:55:16,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 21:55:16,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 21:55:16,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 21:55:16,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 21:55:16,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 21:55:16,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 21:55:16,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 21:55:16,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 21:55:16,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 21:55:16,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 21:55:16,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 21:55:16,220 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 [2019-10-14 21:55:16,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 21:55:16,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 21:55:16,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 21:55:16,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 21:55:16,253 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 21:55:16,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 21:55:16,254 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 21:55:16,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 21:55:16,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 21:55:16,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 21:55:16,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 21:55:16,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 21:55:16,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 21:55:16,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 21:55:16,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 21:55:16,257 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 21:55:16,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 21:55:16,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 21:55:16,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 21:55:16,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 21:55:16,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 21:55:16,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 21:55:16,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 21:55:16,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 21:55:16,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 21:55:16,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 21:55:16,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 21:55:16,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 21:55:16,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 21:55:16,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 21:55:16,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 21:55:16,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 21:55:16,599 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 21:55:16,599 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 21:55:16,600 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label21.c [2019-10-14 21:55:16,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b100577/aab1eba7220543a792605aa0e020e0b0/FLAGae969490b [2019-10-14 21:55:17,466 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 21:55:17,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label21.c [2019-10-14 21:55:17,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b100577/aab1eba7220543a792605aa0e020e0b0/FLAGae969490b [2019-10-14 21:55:18,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b100577/aab1eba7220543a792605aa0e020e0b0 [2019-10-14 21:55:18,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 21:55:18,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 21:55:18,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 21:55:18,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 21:55:18,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 21:55:18,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:55:18" (1/1) ... [2019-10-14 21:55:18,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338e2a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:18, skipping insertion in model container [2019-10-14 21:55:18,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:55:18" (1/1) ... [2019-10-14 21:55:18,036 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 21:55:18,185 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 21:55:19,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 21:55:19,927 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 21:55:20,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 21:55:20,674 INFO L192 MainTranslator]: Completed translation [2019-10-14 21:55:20,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20 WrapperNode [2019-10-14 21:55:20,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 21:55:20,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 21:55:20,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 21:55:20,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 21:55:20,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (1/1) ... [2019-10-14 21:55:20,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 21:55:20,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 21:55:20,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 21:55:20,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 21:55:20,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (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 [2019-10-14 21:55:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 21:55:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 21:55:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-14 21:55:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-14 21:55:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-10-14 21:55:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-10-14 21:55:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 21:55:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-14 21:55:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-14 21:55:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-10-14 21:55:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-10-14 21:55:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 21:55:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 21:55:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 21:55:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 21:55:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 21:55:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 21:55:25,441 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 21:55:25,442 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 21:55:25,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:55:25 BoogieIcfgContainer [2019-10-14 21:55:25,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 21:55:25,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 21:55:25,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 21:55:25,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 21:55:25,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:55:18" (1/3) ... [2019-10-14 21:55:25,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13183229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:55:25, skipping insertion in model container [2019-10-14 21:55:25,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:55:20" (2/3) ... [2019-10-14 21:55:25,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13183229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:55:25, skipping insertion in model container [2019-10-14 21:55:25,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:55:25" (3/3) ... [2019-10-14 21:55:25,466 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label21.c [2019-10-14 21:55:25,478 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 21:55:25,489 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 21:55:25,501 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 21:55:25,547 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 21:55:25,547 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 21:55:25,548 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 21:55:25,548 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 21:55:25,548 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 21:55:25,548 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 21:55:25,548 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 21:55:25,549 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 21:55:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-10-14 21:55:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2019-10-14 21:55:25,650 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:55:25,652 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:55:25,654 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:55:25,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:55:25,662 INFO L82 PathProgramCache]: Analyzing trace with hash 449962387, now seen corresponding path program 1 times [2019-10-14 21:55:25,672 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:55:25,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596948878] [2019-10-14 21:55:25,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:55:25,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:55:25,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:55:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:55:27,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596948878] [2019-10-14 21:55:27,864 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:55:27,864 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 21:55:27,864 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84928640] [2019-10-14 21:55:27,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 21:55:27,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:55:27,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 21:55:27,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 21:55:27,889 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2019-10-14 21:55:39,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:55:39,779 INFO L93 Difference]: Finished difference Result 3521 states and 6823 transitions. [2019-10-14 21:55:39,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 21:55:39,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 808 [2019-10-14 21:55:39,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:55:39,831 INFO L225 Difference]: With dead ends: 3521 [2019-10-14 21:55:39,832 INFO L226 Difference]: Without dead ends: 2547 [2019-10-14 21:55:39,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 21:55:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2019-10-14 21:55:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2534. [2019-10-14 21:55:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2019-10-14 21:55:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 4700 transitions. [2019-10-14 21:55:40,046 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 4700 transitions. Word has length 808 [2019-10-14 21:55:40,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:55:40,049 INFO L462 AbstractCegarLoop]: Abstraction has 2534 states and 4700 transitions. [2019-10-14 21:55:40,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 21:55:40,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 4700 transitions. [2019-10-14 21:55:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2019-10-14 21:55:40,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:55:40,083 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:55:40,083 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:55:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:55:40,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1581672456, now seen corresponding path program 1 times [2019-10-14 21:55:40,084 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:55:40,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119000220] [2019-10-14 21:55:40,084 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:55:40,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:55:40,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:55:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:55:41,176 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119000220] [2019-10-14 21:55:41,176 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:55:41,177 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 21:55:41,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113836598] [2019-10-14 21:55:41,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 21:55:41,187 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:55:41,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 21:55:41,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-14 21:55:41,188 INFO L87 Difference]: Start difference. First operand 2534 states and 4700 transitions. Second operand 9 states. [2019-10-14 21:55:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:55:52,161 INFO L93 Difference]: Finished difference Result 6011 states and 11152 transitions. [2019-10-14 21:55:52,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 21:55:52,162 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 881 [2019-10-14 21:55:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:55:52,185 INFO L225 Difference]: With dead ends: 6011 [2019-10-14 21:55:52,185 INFO L226 Difference]: Without dead ends: 3483 [2019-10-14 21:55:52,192 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-10-14 21:55:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2019-10-14 21:55:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3426. [2019-10-14 21:55:52,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2019-10-14 21:55:52,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 5760 transitions. [2019-10-14 21:55:52,324 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 5760 transitions. Word has length 881 [2019-10-14 21:55:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:55:52,326 INFO L462 AbstractCegarLoop]: Abstraction has 3426 states and 5760 transitions. [2019-10-14 21:55:52,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 21:55:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 5760 transitions. [2019-10-14 21:55:52,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2019-10-14 21:55:52,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:55:52,348 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:55:52,348 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:55:52,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:55:52,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1049292807, now seen corresponding path program 1 times [2019-10-14 21:55:52,349 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:55:52,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543356737] [2019-10-14 21:55:52,350 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:55:52,350 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:55:52,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:55:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:55:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 99 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 21:55:53,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543356737] [2019-10-14 21:55:53,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898430149] [2019-10-14 21:55:53,401 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