/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:51:10,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:51:10,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:51:10,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:51:10,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:51:10,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:51:10,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:51:10,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:51:10,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:51:10,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:51:10,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:51:10,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:51:10,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:51:10,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:51:10,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:51:10,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:51:10,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:51:10,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:51:10,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:51:10,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:51:10,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:51:10,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:51:10,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:51:10,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:51:10,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:51:10,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:51:10,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:51:10,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:51:10,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:51:10,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:51:10,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:51:10,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:51:10,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:51:10,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:51:10,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:51:10,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:51:10,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:51:10,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:51:10,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:51:10,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:51:10,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:51:10,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:51:10,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:51:10,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:51:10,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:51:10,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:51:10,335 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:51:10,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:51:10,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:51:10,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:51:10,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:51:10,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:51:10,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:51:10,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:51:10,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:51:10,337 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:51:10,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:51:10,337 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:51:10,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:51:10,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:51:10,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:51:10,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:51:10,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:51:10,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:51:10,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:51:10,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:51:10,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:51:10,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:51:10,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:51:10,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:51:10,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:51:10,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:51:10,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:51:10,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:51:10,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:51:10,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:51:10,862 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:51:10,863 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-09-25 06:51:10,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8115e8f4d/c9955b3246d14ec090668db71d360e5d/FLAG57cf52000 [2020-09-25 06:51:11,505 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:51:11,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-09-25 06:51:11,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8115e8f4d/c9955b3246d14ec090668db71d360e5d/FLAG57cf52000 [2020-09-25 06:51:11,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8115e8f4d/c9955b3246d14ec090668db71d360e5d [2020-09-25 06:51:11,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:51:11,888 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:51:11,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:51:11,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:51:11,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:51:11,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a32a894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11, skipping insertion in model container [2020-09-25 06:51:11,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:51:11,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:51:12,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:51:12,170 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:51:12,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:51:12,215 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:51:12,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12 WrapperNode [2020-09-25 06:51:12,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:51:12,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:51:12,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:51:12,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:51:12,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... [2020-09-25 06:51:12,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:51:12,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:51:12,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:51:12,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:51:12,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 06:51:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:51:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:51:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 06:51:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 06:51:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:51:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:51:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:51:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 06:51:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 06:51:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:51:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:51:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:51:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:51:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:51:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:51:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:51:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:51:12,792 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:51:12,792 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 06:51:12,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:51:12 BoogieIcfgContainer [2020-09-25 06:51:12,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:51:12,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:51:12,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:51:12,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:51:12,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:51:11" (1/3) ... [2020-09-25 06:51:12,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fed1518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:51:12, skipping insertion in model container [2020-09-25 06:51:12,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:12" (2/3) ... [2020-09-25 06:51:12,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fed1518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:51:12, skipping insertion in model container [2020-09-25 06:51:12,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:51:12" (3/3) ... [2020-09-25 06:51:12,811 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-09-25 06:51:12,826 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:51:12,840 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:51:12,873 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:51:12,909 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:51:12,909 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:51:12,910 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:51:12,910 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:51:12,910 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:51:12,910 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:51:12,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:51:12,911 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:51:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-09-25 06:51:12,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 06:51:12,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:12,944 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] [2020-09-25 06:51:12,944 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:12,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1392671971, now seen corresponding path program 1 times [2020-09-25 06:51:12,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:12,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305435912] [2020-09-25 06:51:12,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:13,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:13,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 06:51:13,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-09-25 06:51:13,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:13,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:13,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 06:51:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:51:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:13,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:13,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:51:13,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:13,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:13,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:13,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:13,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:13,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:51:13,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:13,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:51:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:51:13,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305435912] [2020-09-25 06:51:13,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:13,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:51:13,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766877106] [2020-09-25 06:51:13,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:51:13,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:13,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:51:13,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:51:13,677 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-09-25 06:51:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:13,957 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2020-09-25 06:51:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:51:13,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-09-25 06:51:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:13,980 INFO L225 Difference]: With dead ends: 94 [2020-09-25 06:51:13,981 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 06:51:13,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:51:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 06:51:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-09-25 06:51:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 06:51:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-09-25 06:51:14,039 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 29 [2020-09-25 06:51:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:14,039 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-09-25 06:51:14,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:51:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-09-25 06:51:14,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 06:51:14,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:14,042 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] [2020-09-25 06:51:14,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:51:14,043 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:14,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:14,043 INFO L82 PathProgramCache]: Analyzing trace with hash 31734745, now seen corresponding path program 1 times [2020-09-25 06:51:14,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:14,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322918881] [2020-09-25 06:51:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:14,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:14,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 06:51:14,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:14,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 06:51:14,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:14,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:51:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 06:51:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:51:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:14,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:14,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:14,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:51:14,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:14,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:14,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:14,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:14,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:14,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:14,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:14,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 06:51:14,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:14,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:14,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:14,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:14,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:14,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:51:14,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322918881] [2020-09-25 06:51:14,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:14,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:51:14,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732422018] [2020-09-25 06:51:14,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:51:14,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:14,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:51:14,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:51:14,544 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 5 states. [2020-09-25 06:51:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:14,792 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2020-09-25 06:51:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:51:14,794 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-25 06:51:14,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:14,798 INFO L225 Difference]: With dead ends: 83 [2020-09-25 06:51:14,798 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 06:51:14,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:51:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 06:51:14,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2020-09-25 06:51:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 06:51:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-09-25 06:51:14,836 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 29 [2020-09-25 06:51:14,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:14,837 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-09-25 06:51:14,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:51:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-09-25 06:51:14,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 06:51:14,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:14,841 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] [2020-09-25 06:51:14,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:51:14,841 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash 215899159, now seen corresponding path program 1 times [2020-09-25 06:51:14,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:14,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553503272] [2020-09-25 06:51:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:14,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:16,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:16,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 06:51:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:51:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-09-25 06:51:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:16,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:51:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 06:51:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:51:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:16,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:16,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:16,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:16,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:16,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:51:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:16,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:16,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:16,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:16,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:16,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:16,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:16,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:16,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 06:51:16,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:16,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:16,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:16,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:16,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:16,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:51:16,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553503272] [2020-09-25 06:51:16,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:51:16,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:51:16,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45572785] [2020-09-25 06:51:16,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:51:16,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:51:16,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:51:16,574 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 7 states. [2020-09-25 06:51:16,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:16,865 INFO L93 Difference]: Finished difference Result 92 states and 103 transitions. [2020-09-25 06:51:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:51:16,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 06:51:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:16,867 INFO L225 Difference]: With dead ends: 92 [2020-09-25 06:51:16,867 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 06:51:16,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:51:16,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 06:51:16,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 59. [2020-09-25 06:51:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 06:51:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2020-09-25 06:51:16,887 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 36 [2020-09-25 06:51:16,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:16,888 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2020-09-25 06:51:16,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:51:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2020-09-25 06:51:16,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 06:51:16,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:16,892 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 06:51:16,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:51:16,892 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:16,893 INFO L82 PathProgramCache]: Analyzing trace with hash -490137063, now seen corresponding path program 2 times [2020-09-25 06:51:16,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:16,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862925006] [2020-09-25 06:51:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:16,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:16,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:17,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:51:19,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:51:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2479 [2020-09-25 06:51:19,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:51:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 06:51:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:51:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:19,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:51:19,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:19,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:51:19,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:51:19,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862925006] [2020-09-25 06:51:19,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:51:19,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:51:19,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684602237] [2020-09-25 06:51:19,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:51:19,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:19,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:51:19,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:51:19,526 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 9 states. [2020-09-25 06:51:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:19,796 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-09-25 06:51:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:51:19,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-09-25 06:51:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:19,799 INFO L225 Difference]: With dead ends: 101 [2020-09-25 06:51:19,799 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 06:51:19,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:51:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 06:51:19,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 68. [2020-09-25 06:51:19,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 06:51:19,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2020-09-25 06:51:19,809 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 43 [2020-09-25 06:51:19,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:19,809 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2020-09-25 06:51:19,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:51:19,810 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2020-09-25 06:51:19,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 06:51:19,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:19,812 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:19,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:51:19,812 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:19,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:19,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1622078935, now seen corresponding path program 3 times [2020-09-25 06:51:19,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:19,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481929136] [2020-09-25 06:51:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:20,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:23,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:23,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:51:23,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:51:23,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3254 [2020-09-25 06:51:23,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:23,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:51:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:51:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:51:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:23,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:23,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:23,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:23,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:23,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:51:23,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:23,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:23,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:23,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:23,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:23,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:23,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:23,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:23,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:51:23,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:23,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:23,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:51:23,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:51:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:51:23,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 06:51:23,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481929136] [2020-09-25 06:51:23,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:23,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:51:23,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652491084] [2020-09-25 06:51:23,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:51:23,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:23,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:51:23,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:51:23,183 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 7 states. [2020-09-25 06:51:23,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:23,458 INFO L93 Difference]: Finished difference Result 119 states and 131 transitions. [2020-09-25 06:51:23,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:51:23,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-09-25 06:51:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:23,460 INFO L225 Difference]: With dead ends: 119 [2020-09-25 06:51:23,460 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 06:51:23,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:51:23,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 06:51:23,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-09-25 06:51:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 06:51:23,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2020-09-25 06:51:23,469 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 50 [2020-09-25 06:51:23,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:23,470 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2020-09-25 06:51:23,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:51:23,470 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2020-09-25 06:51:23,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 06:51:23,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:23,472 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:23,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:51:23,473 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:23,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:23,473 INFO L82 PathProgramCache]: Analyzing trace with hash -895858853, now seen corresponding path program 1 times [2020-09-25 06:51:23,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:23,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536242222] [2020-09-25 06:51:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:23,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:23,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:24,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:24,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:25,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:28,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:28,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 06:51:28,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:51:28,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:51:28,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:28,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:51:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 06:51:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:51:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:28,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:28,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:28,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:28,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:28,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:51:28,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:28,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:28,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:28,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:28,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:51:28,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 06:51:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:28,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:51:28,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536242222] [2020-09-25 06:51:28,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:51:28,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 06:51:28,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412666801] [2020-09-25 06:51:28,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:51:28,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:28,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:51:28,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:51:28,737 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 11 states. [2020-09-25 06:51:29,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:29,061 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2020-09-25 06:51:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:51:29,062 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 06:51:29,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:29,066 INFO L225 Difference]: With dead ends: 108 [2020-09-25 06:51:29,066 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 06:51:29,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:51:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 06:51:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 78. [2020-09-25 06:51:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 06:51:29,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-09-25 06:51:29,082 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 56 [2020-09-25 06:51:29,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:29,082 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-09-25 06:51:29,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:51:29,083 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-09-25 06:51:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 06:51:29,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:29,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:29,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:51:29,087 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:29,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1733379499, now seen corresponding path program 2 times [2020-09-25 06:51:29,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:29,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203134445] [2020-09-25 06:51:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:29,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:29,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:29,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:31,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:31,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:33,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:34,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:34,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 06:51:34,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:51:34,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:51:34,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:34,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:51:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:51:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 06:51:34,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:34,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:34,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:34,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:34,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:34,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:51:34,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:34,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:34,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:34,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:34,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:51:34,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 06:51:34,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:34,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:34,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:51:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:51:34,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-25 06:51:34,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203134445] [2020-09-25 06:51:34,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:51:34,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 06:51:34,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428657424] [2020-09-25 06:51:34,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:51:34,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:34,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:51:34,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:51:34,520 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 11 states. [2020-09-25 06:51:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:34,921 INFO L93 Difference]: Finished difference Result 188 states and 210 transitions. [2020-09-25 06:51:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:51:34,922 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-25 06:51:34,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:34,924 INFO L225 Difference]: With dead ends: 188 [2020-09-25 06:51:34,924 INFO L226 Difference]: Without dead ends: 141 [2020-09-25 06:51:34,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:51:34,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-09-25 06:51:34,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2020-09-25 06:51:34,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 06:51:34,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2020-09-25 06:51:34,934 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 63 [2020-09-25 06:51:34,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:34,935 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2020-09-25 06:51:34,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:51:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2020-09-25 06:51:34,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 06:51:34,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:34,938 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:34,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:51:34,938 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:34,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:34,939 INFO L82 PathProgramCache]: Analyzing trace with hash 407923107, now seen corresponding path program 1 times [2020-09-25 06:51:34,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:34,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205483111] [2020-09-25 06:51:34,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:34,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:39,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:39,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:51:39,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:51:39,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 06:51:39,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:39,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:39,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:51:39,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 06:51:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:51:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:40,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:40,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:51:40,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:40,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:40,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:40,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:40,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:40,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:51:40,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:40,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 06:51:40,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:40,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:40,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:40,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:40,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:40,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 06:51:40,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205483111] [2020-09-25 06:51:40,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:40,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:51:40,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636253469] [2020-09-25 06:51:40,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:51:40,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:40,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:51:40,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:51:40,126 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 5 states. [2020-09-25 06:51:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:40,248 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2020-09-25 06:51:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:51:40,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-09-25 06:51:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:40,250 INFO L225 Difference]: With dead ends: 141 [2020-09-25 06:51:40,250 INFO L226 Difference]: Without dead ends: 76 [2020-09-25 06:51:40,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:51:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-25 06:51:40,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-25 06:51:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 06:51:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-09-25 06:51:40,256 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 64 [2020-09-25 06:51:40,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:40,257 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-09-25 06:51:40,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:51:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-09-25 06:51:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 06:51:40,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:40,258 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2020-09-25 06:51:40,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:51:40,259 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:40,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:40,259 INFO L82 PathProgramCache]: Analyzing trace with hash -2016739503, now seen corresponding path program 3 times [2020-09-25 06:51:40,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:40,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282346834] [2020-09-25 06:51:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:40,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:40,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:40,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:43,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:43,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:43,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:45,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:45,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:45,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 06:51:45,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:51:45,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:51:45,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:45,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 06:51:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:51:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:51:45,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:45,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:45,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:45,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:45,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:45,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:51:45,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:45,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:45,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:45,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:45,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:51:45,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:51:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-09-25 06:51:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:45,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:51:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:51:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:46,010 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 06:51:46,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282346834] [2020-09-25 06:51:46,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:51:46,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 06:51:46,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443233476] [2020-09-25 06:51:46,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 06:51:46,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:46,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 06:51:46,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:51:46,013 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 15 states. [2020-09-25 06:51:46,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:46,609 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2020-09-25 06:51:46,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 06:51:46,610 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2020-09-25 06:51:46,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:46,611 INFO L225 Difference]: With dead ends: 131 [2020-09-25 06:51:46,611 INFO L226 Difference]: Without dead ends: 84 [2020-09-25 06:51:46,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2020-09-25 06:51:46,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-25 06:51:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2020-09-25 06:51:46,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 06:51:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2020-09-25 06:51:46,623 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 69 [2020-09-25 06:51:46,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:46,623 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2020-09-25 06:51:46,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 06:51:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2020-09-25 06:51:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 06:51:46,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:46,624 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:46,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:51:46,625 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:46,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:46,625 INFO L82 PathProgramCache]: Analyzing trace with hash -330918067, now seen corresponding path program 4 times [2020-09-25 06:51:46,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:46,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999928271] [2020-09-25 06:51:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:46,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:46,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:46,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:46,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:46,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:47,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:47,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:47,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:47,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:51,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:51,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:51:51,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 06:51:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:51:51,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:51,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:51:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:51:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:51:51,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:51,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:51,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:51,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:51:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:51,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:51:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:51,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:51,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:51,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:53,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:53,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:51:53,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:51:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1450 [2020-09-25 06:51:53,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:53,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 06:51:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:51:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 06:51:53,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999928271] [2020-09-25 06:51:53,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:51:53,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 06:51:53,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557338734] [2020-09-25 06:51:53,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 06:51:53,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:53,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 06:51:53,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:51:53,561 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand 17 states. [2020-09-25 06:51:54,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:54,107 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2020-09-25 06:51:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:51:54,108 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 75 [2020-09-25 06:51:54,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:54,108 INFO L225 Difference]: With dead ends: 82 [2020-09-25 06:51:54,109 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:51:54,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2020-09-25 06:51:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:51:54,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:51:54,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:51:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:51:54,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2020-09-25 06:51:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:54,111 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:51:54,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 06:51:54,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:51:54,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:51:54,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:51:54,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:51:54,421 INFO L264 CegarLoopResult]: At program point initENTRY(lines 9 16) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point L14-2(lines 12 15) no Hoare annotation was computed. [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 06:51:54,422 INFO L268 CegarLoopResult]: For program point L9(lines 9 16) no Hoare annotation was computed. [2020-09-25 06:51:54,423 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 06:51:54,423 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 06:51:54,424 INFO L264 CegarLoopResult]: At program point L12-5(lines 12 15) the Hoare annotation is: (let ((.cse0 (= init_~a.offset |init_#in~a.offset|)) (.cse1 (<= |init_#in~size| init_~size)) (.cse2 (= init_~a.base |init_#in~a.base|))) (or (and .cse0 .cse1 (not (= (select (select |#memory_$Pointer$.base| |init_#in~a.base|) |init_#in~a.offset|) 0)) .cse2 (<= init_~i~0 1) (<= 1 init_~i~0)) (and .cse0 (not (= (select (select |#memory_$Pointer$.base| init_~a.base) (+ init_~a.offset 4)) 0)) (not (= |init_#t~malloc1.base| 0)) .cse1 .cse2) (let ((.cse3 (* init_~i~0 4))) (and (= |init_#in~a.offset| (+ init_~a.offset .cse3)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse1 .cse2 (= .cse3 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))))) [2020-09-25 06:51:54,424 INFO L268 CegarLoopResult]: For program point L12-6(lines 9 16) no Hoare annotation was computed. [2020-09-25 06:51:54,425 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 06:51:54,425 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 06:51:54,425 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:51:54,425 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 06:51:54,425 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:51:54,425 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:51:54,425 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:51:54,426 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:51:54,426 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:51:54,426 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-09-25 06:51:54,426 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 06:51:54,426 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-25 06:51:54,426 INFO L264 CegarLoopResult]: At program point L31-5(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-09-25 06:51:54,427 INFO L268 CegarLoopResult]: For program point L31-6(lines 31 35) no Hoare annotation was computed. [2020-09-25 06:51:54,428 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-09-25 06:51:54,428 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-09-25 06:51:54,428 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 06:51:54,428 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 06:51:54,428 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 06:51:54,428 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 06:51:54,429 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 06:51:54,429 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-09-25 06:51:54,429 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-09-25 06:51:54,429 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-09-25 06:51:54,429 INFO L264 CegarLoopResult]: At program point L24-5(lines 24 30) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |main_~#a~0.base|))) (let ((.cse1 (not (= (select .cse3 (+ |main_~#a~0.offset| 4)) 0))) (.cse2 (not (= 0 (select .cse3 (+ (* main_~i~1 4) |main_~#a~0.offset|))))) (.cse0 (= main_~i~1 0))) (or (<= 1 main_~flag~0) (and .cse0 .cse1) (and .cse2 (<= main_~i~1 1) .cse1) (and .cse2 .cse0)))) [2020-09-25 06:51:54,429 INFO L268 CegarLoopResult]: For program point L24-6(lines 24 30) no Hoare annotation was computed. [2020-09-25 06:51:54,430 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-09-25 06:51:54,430 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 06:51:54,430 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-09-25 06:51:54,430 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 06:51:54,430 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: false [2020-09-25 06:51:54,430 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 06:51:54,430 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 06:51:54,431 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 06:51:54,431 INFO L268 CegarLoopResult]: For program point L26-1(lines 26 29) no Hoare annotation was computed. [2020-09-25 06:51:54,431 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 06:51:54,431 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 06:51:54,431 INFO L268 CegarLoopResult]: For program point L26-4(line 26) no Hoare annotation was computed. [2020-09-25 06:51:54,431 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-09-25 06:51:54,431 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2020-09-25 06:51:54,432 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2020-09-25 06:51:54,432 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 06:51:54,432 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 06:51:54,432 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-09-25 06:51:54,452 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,463 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,473 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,473 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,481 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:51:54 BoogieIcfgContainer [2020-09-25 06:51:54,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:51:54,502 INFO L168 Benchmark]: Toolchain (without parser) took 42616.29 ms. Allocated memory was 140.5 MB in the beginning and 425.7 MB in the end (delta: 285.2 MB). Free memory was 102.0 MB in the beginning and 292.9 MB in the end (delta: -190.9 MB). Peak memory consumption was 94.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:54,503 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:51:54,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.72 ms. Allocated memory is still 140.5 MB. Free memory was 101.3 MB in the beginning and 91.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:54,510 INFO L168 Benchmark]: Boogie Preprocessor took 121.66 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 180.8 MB in the end (delta: -89.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:54,512 INFO L168 Benchmark]: RCFGBuilder took 459.86 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 162.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:54,513 INFO L168 Benchmark]: TraceAbstraction took 41697.00 ms. Allocated memory was 203.4 MB in the beginning and 425.7 MB in the end (delta: 222.3 MB). Free memory was 161.8 MB in the beginning and 292.9 MB in the end (delta: -131.1 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:54,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 327.72 ms. Allocated memory is still 140.5 MB. Free memory was 101.3 MB in the beginning and 91.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.66 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 180.8 MB in the end (delta: -89.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.86 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 162.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41697.00 ms. Allocated memory was 203.4 MB in the beginning and 425.7 MB in the end (delta: 222.3 MB). Free memory was 161.8 MB in the beginning and 292.9 MB in the end (delta: -131.1 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant [2020-09-25 06:51:54,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((1 <= flag || (i == 0 && !(#memory_$Pointer$[a][a + 4] == 0))) || ((!(0 == #memory_$Pointer$[a][i * 4 + a]) && i <= 1) && !(#memory_$Pointer$[a][a + 4] == 0))) || (!(0 == #memory_$Pointer$[a][i * 4 + a]) && i == 0) - InvariantResult [Line: 12]: Loop Invariant [2020-09-25 06:51:54,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,546 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 06:51:54,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 06:51:54,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 06:51:54,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 06:51:54,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((((a == a && \old(size) <= size) && !(#memory_$Pointer$[a][a] == 0)) && a == a) && i <= 1) && 1 <= i) || ((((a == a && !(#memory_$Pointer$[a][a + 4] == 0)) && !(malloc(sizeof(int)) == 0)) && \old(size) <= size) && a == a)) || (((((((a == a + i * 4 && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(unknown-#length-unknown) == unknown-#length-unknown) && \old(size) <= size) && a == a) && i * 4 == 0) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= flag - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 41.2s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 447 SDtfs, 524 SDslu, 1282 SDs, 0 SdLazy, 1638 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 130 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 20 PreInvPairs, 31 NumberOfFragments, 184 HoareAnnotationTreeSize, 20 FomulaSimplifications, 107 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 71 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 37.0s InterpolantComputationTime, 514 NumberOfCodeBlocks, 514 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 504 ConstructedInterpolants, 0 QuantifiedInterpolants, 104666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 201/271 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...