/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:22:42,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:22:42,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:22:42,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:22:42,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:22:42,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:22:42,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:22:42,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:22:42,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:22:42,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:22:42,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:22:42,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:22:42,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:22:42,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:22:42,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:22:42,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:22:42,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:22:42,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:22:42,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:22:42,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:22:42,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:22:42,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:22:42,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:22:42,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:22:42,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:22:42,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:22:42,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:22:42,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:22:42,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:22:42,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:22:42,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:22:42,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:22:42,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:22:42,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:22:42,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:22:42,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:22:42,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:22:42,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:22:42,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:22:42,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:22:42,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:22:42,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:22:42,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:22:42,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:22:42,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:22:42,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:22:42,659 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:22:42,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:22:42,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:22:42,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:22:42,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:22:42,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:22:42,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:22:42,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:22:42,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:22:42,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:22:42,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:22:42,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:22:42,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:22:42,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:22:42,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:22:42,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:22:42,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:22:42,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:22:42,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:22:42,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:22:42,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:22:42,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:22:42,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:22:42,663 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:22:42,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:22:42,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:22:42,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:22:42,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:22:42,990 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:22:42,991 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-13 17:22:43,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5cd1656/c6bfaa7eb83f460198800e3ce8c28b84/FLAG4816d6e09 [2020-10-13 17:22:43,845 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:22:43,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-13 17:22:43,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5cd1656/c6bfaa7eb83f460198800e3ce8c28b84/FLAG4816d6e09 [2020-10-13 17:22:44,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5cd1656/c6bfaa7eb83f460198800e3ce8c28b84 [2020-10-13 17:22:44,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:22:44,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:22:44,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:44,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:22:44,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:22:44,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:44" (1/1) ... [2020-10-13 17:22:44,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738085fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:44, skipping insertion in model container [2020-10-13 17:22:44,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:44" (1/1) ... [2020-10-13 17:22:44,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:22:44,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:22:46,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:22:46,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:22:46,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:22:46,736 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:22:46,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46 WrapperNode [2020-10-13 17:22:46,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:46,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:22:46,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:22:46,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:22:46,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (1/1) ... [2020-10-13 17:22:46,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:22:46,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:22:46,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:22:46,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:22:46,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (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 [2020-10-13 17:22:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:22:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:22:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-13 17:22:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-13 17:22:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 17:22:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 17:22:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2020-10-13 17:22:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2020-10-13 17:22:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_cur_bytes [2020-10-13 17:22:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-13 17:22:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2020-10-13 17:22:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2020-10-13 17:22:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2020-10-13 17:22:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_sectors [2020-10-13 17:22:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2020-10-13 17:22:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_tq_int [2020-10-13 17:22:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_init_units [2020-10-13 17:22:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_open [2020-10-13 17:22:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2020-10-13 17:22:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2020-10-13 17:22:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_release [2020-10-13 17:22:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2020-10-13 17:22:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-13 17:22:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-13 17:22:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-13 17:22:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2020-10-13 17:22:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2020-10-13 17:22:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2020-10-13 17:22:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2020-10-13 17:22:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2020-10-13 17:22:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2020-10-13 17:22:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_eject [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_get_capacity [2020-10-13 17:22:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2020-10-13 17:22:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2020-10-13 17:22:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_detect [2020-10-13 17:22:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_start [2020-10-13 17:22:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ready [2020-10-13 17:22:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_end_request [2020-10-13 17:22:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_request [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_next_buf [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read_start [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read_drq [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write [2020-10-13 17:22:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write_start [2020-10-13 17:22:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write_done [2020-10-13 17:22:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_init [2020-10-13 17:22:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_exit [2020-10-13 17:22:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:22:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:22:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-13 17:22:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-13 17:22:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-10-13 17:22:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-13 17:22:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-13 17:22:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-13 17:22:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2020-10-13 17:22:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:22:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:22:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:22:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:22:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:22:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:22:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:22:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:22:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:22:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:22:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:22:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:22:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:22:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:22:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pf_mutex [2020-10-13 17:22:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pf_mutex [2020-10-13 17:22:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2020-10-13 17:22:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pf_mutex [2020-10-13 17:22:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pf_mutex [2020-10-13 17:22:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pf_mutex [2020-10-13 17:22:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2020-10-13 17:22:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:22:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:22:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_cur [2020-10-13 17:22:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 17:22:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-13 17:22:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 17:22:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-13 17:22:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-13 17:22:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:22:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:22:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-13 17:22:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-13 17:22:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2020-10-13 17:22:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-13 17:22:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-13 17:22:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-13 17:22:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-13 17:22:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 17:22:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-13 17:22:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:22:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-13 17:22:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:22:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2020-10-13 17:22:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-13 17:22:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:22:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:22:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:22:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:22:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:22:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2020-10-13 17:22:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2020-10-13 17:22:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:22:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:22:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-13 17:22:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 17:22:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 17:22:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 17:22:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-13 17:22:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-13 17:22:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-13 17:22:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-13 17:22:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 17:22:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 17:22:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-13 17:22:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-13 17:22:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2020-10-13 17:22:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:22:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2020-10-13 17:22:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:22:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-13 17:22:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-13 17:22:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_bytes [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_sectors [2020-10-13 17:22:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_cur [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-13 17:22:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2020-10-13 17:22:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure ps_tq_int [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure pf_open [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_request [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2020-10-13 17:22:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure pf_release [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure pf_detect [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read_start [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write_start [2020-10-13 17:22:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read_drq [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write_done [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure pf_eject [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:22:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure pf_init_units [2020-10-13 17:22:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:22:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-13 17:22:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:22:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-13 17:22:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2020-10-13 17:22:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pf_get_capacity [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pf_start [2020-10-13 17:22:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ready [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure pf_end_request [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure pf_next_buf [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure pf_init [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure pf_exit [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:22:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:22:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:22:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:22:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:22:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:22:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pf_mutex [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pf_mutex [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pf_mutex [2020-10-13 17:22:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pf_mutex [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pf_mutex [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:22:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:22:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:22:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:22:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:22:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:22:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 17:22:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 17:22:53,043 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:22:53,044 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 17:22:53,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:22:53 BoogieIcfgContainer [2020-10-13 17:22:53,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:22:53,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:22:53,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:22:53,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:22:53,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:22:44" (1/3) ... [2020-10-13 17:22:53,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a3a413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:22:53, skipping insertion in model container [2020-10-13 17:22:53,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:46" (2/3) ... [2020-10-13 17:22:53,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a3a413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:22:53, skipping insertion in model container [2020-10-13 17:22:53,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:22:53" (3/3) ... [2020-10-13 17:22:53,069 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-13 17:22:53,081 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:22:53,092 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:22:53,106 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:22:53,134 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:22:53,134 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:22:53,135 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:22:53,135 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:22:53,135 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:22:53,135 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:22:53,135 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:22:53,135 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:22:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states. [2020-10-13 17:22:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-13 17:22:53,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:22:53,187 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] [2020-10-13 17:22:53,188 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:22:53,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:22:53,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1309313782, now seen corresponding path program 1 times [2020-10-13 17:22:53,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:22:53,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72257350] [2020-10-13 17:22:53,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:22:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:22:53,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:54,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:58,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:22:58,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:22:58,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:22:58,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-13 17:22:58,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:22:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:22:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:22:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:22:58,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:23:00,286 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:23:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:00,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:00,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:00,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:00,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-13 17:23:00,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:00,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:00,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:00,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:00,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:00,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:23:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:00,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72257350] [2020-10-13 17:23:00,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:00,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:23:00,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987543196] [2020-10-13 17:23:00,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:23:00,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:00,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:23:00,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:23:00,632 INFO L87 Difference]: Start difference. First operand 974 states. Second operand 5 states. [2020-10-13 17:23:02,607 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-13 17:23:22,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:22,769 INFO L93 Difference]: Finished difference Result 1688 states and 2318 transitions. [2020-10-13 17:23:22,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:23:22,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-13 17:23:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:22,804 INFO L225 Difference]: With dead ends: 1688 [2020-10-13 17:23:22,805 INFO L226 Difference]: Without dead ends: 1088 [2020-10-13 17:23:22,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:23:22,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2020-10-13 17:23:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1000. [2020-10-13 17:23:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2020-10-13 17:23:23,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1313 transitions. [2020-10-13 17:23:23,233 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1313 transitions. Word has length 28 [2020-10-13 17:23:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:23,234 INFO L479 AbstractCegarLoop]: Abstraction has 1000 states and 1313 transitions. [2020-10-13 17:23:23,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:23:23,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1313 transitions. [2020-10-13 17:23:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 17:23:23,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:23,237 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] [2020-10-13 17:23:23,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:23:23,238 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:23,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1163026274, now seen corresponding path program 1 times [2020-10-13 17:23:23,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:23,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783213750] [2020-10-13 17:23:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:23,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:23,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:23,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:26,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:23:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:23:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3073 [2020-10-13 17:23:26,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:23:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:27,934 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:23:27,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:27,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:28,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:28,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:28,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:28,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-13 17:23:28,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:28,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:28,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:28,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:28,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:28,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:28,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:23:28,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:28,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:28,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:28,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:28,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:28,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:23:28,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:23:28,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:28,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783213750] [2020-10-13 17:23:28,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:28,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:28,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894987578] [2020-10-13 17:23:28,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:28,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:28,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:28,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:28,282 INFO L87 Difference]: Start difference. First operand 1000 states and 1313 transitions. Second operand 6 states. [2020-10-13 17:23:30,898 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-13 17:23:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:44,386 INFO L93 Difference]: Finished difference Result 1169 states and 1577 transitions. [2020-10-13 17:23:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:23:44,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-13 17:23:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:44,401 INFO L225 Difference]: With dead ends: 1169 [2020-10-13 17:23:44,401 INFO L226 Difference]: Without dead ends: 1158 [2020-10-13 17:23:44,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:23:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2020-10-13 17:23:44,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1001. [2020-10-13 17:23:44,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-10-13 17:23:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1314 transitions. [2020-10-13 17:23:44,720 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1314 transitions. Word has length 30 [2020-10-13 17:23:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:44,721 INFO L479 AbstractCegarLoop]: Abstraction has 1001 states and 1314 transitions. [2020-10-13 17:23:44,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:23:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1314 transitions. [2020-10-13 17:23:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 17:23:44,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:44,722 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] [2020-10-13 17:23:44,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:23:44,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:44,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1220284576, now seen corresponding path program 1 times [2020-10-13 17:23:44,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:44,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007241411] [2020-10-13 17:23:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:44,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:46,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:23:46,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:23:46,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1218 [2020-10-13 17:23:46,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:23:46,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 17:23:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:47,305 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:23:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:47,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:47,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:47,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:47,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-13 17:23:47,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:47,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:47,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:47,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:47,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:47,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:23:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:47,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:47,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:47,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:47,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:23:47,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:23:47,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:47,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:47,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:23:47,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 60 [2020-10-13 17:23:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:47,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007241411] [2020-10-13 17:23:47,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:47,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:47,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084059528] [2020-10-13 17:23:47,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:47,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:47,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:47,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:47,701 INFO L87 Difference]: Start difference. First operand 1001 states and 1314 transitions. Second operand 6 states. [2020-10-13 17:23:50,047 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-13 17:24:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:03,915 INFO L93 Difference]: Finished difference Result 1148 states and 1549 transitions. [2020-10-13 17:24:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:24:03,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-13 17:24:03,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:03,925 INFO L225 Difference]: With dead ends: 1148 [2020-10-13 17:24:03,925 INFO L226 Difference]: Without dead ends: 1145 [2020-10-13 17:24:03,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:24:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2020-10-13 17:24:04,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1000. [2020-10-13 17:24:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2020-10-13 17:24:04,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1312 transitions. [2020-10-13 17:24:04,151 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1312 transitions. Word has length 30 [2020-10-13 17:24:04,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:04,151 INFO L479 AbstractCegarLoop]: Abstraction has 1000 states and 1312 transitions. [2020-10-13 17:24:04,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:24:04,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1312 transitions. [2020-10-13 17:24:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:24:04,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:04,153 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] [2020-10-13 17:24:04,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:24:04,153 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:04,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:04,154 INFO L82 PathProgramCache]: Analyzing trace with hash -826486227, now seen corresponding path program 1 times [2020-10-13 17:24:04,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:04,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523058733] [2020-10-13 17:24:04,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:04,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:05,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:05,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:24:05,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:24:05,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-10-13 17:24:05,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:24:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 17:24:05,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:06,588 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:24:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:06,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:06,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:06,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:06,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-13 17:24:06,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:06,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:06,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:24:06,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:07,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:07,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:07,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:07,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:07,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 17:24:07,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:24:07,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:24:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:07,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:07,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:07,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:24:07,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:24:07,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 17:24:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:24:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:24:07,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523058733] [2020-10-13 17:24:07,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:24:07,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:24:07,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077411610] [2020-10-13 17:24:07,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:24:07,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:07,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:24:07,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:24:07,157 INFO L87 Difference]: Start difference. First operand 1000 states and 1312 transitions. Second operand 7 states. [2020-10-13 17:24:10,564 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-13 17:24:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:26,723 INFO L93 Difference]: Finished difference Result 2080 states and 2753 transitions. [2020-10-13 17:24:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:24:26,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-13 17:24:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:26,734 INFO L225 Difference]: With dead ends: 2080 [2020-10-13 17:24:26,734 INFO L226 Difference]: Without dead ends: 1091 [2020-10-13 17:24:26,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:24:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2020-10-13 17:24:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1000. [2020-10-13 17:24:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2020-10-13 17:24:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1310 transitions. [2020-10-13 17:24:26,990 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1310 transitions. Word has length 31 [2020-10-13 17:24:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:26,991 INFO L479 AbstractCegarLoop]: Abstraction has 1000 states and 1310 transitions. [2020-10-13 17:24:26,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:24:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1310 transitions. [2020-10-13 17:24:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 17:24:26,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:26,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:24:26,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:24:26,993 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:26,993 INFO L82 PathProgramCache]: Analyzing trace with hash -804372837, now seen corresponding path program 1 times [2020-10-13 17:24:26,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:26,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897133797] [2020-10-13 17:24:26,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:27,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:27,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:28,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 17:24:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:24:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2372 [2020-10-13 17:24:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 17:24:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:24:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:30,782 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:24:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:30,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:30,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:30,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:30,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 17:24:30,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:30,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:30,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:30,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:24:30,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:30,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:30,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:24:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 17:24:31,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:24:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 17:24:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:24:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:31,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:24:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:31,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:31,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:31,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:31,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:24:31,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:31,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 17:24:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:31,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:31,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:31,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:31,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:24:31,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:24:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:31,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:24:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:24:31,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897133797] [2020-10-13 17:24:31,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:24:31,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:24:31,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107899345] [2020-10-13 17:24:31,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:24:31,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:31,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:24:31,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:24:31,064 INFO L87 Difference]: Start difference. First operand 1000 states and 1310 transitions. Second operand 5 states. [2020-10-13 17:24:33,575 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-13 17:24:47,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:47,552 INFO L93 Difference]: Finished difference Result 1115 states and 1471 transitions. [2020-10-13 17:24:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 17:24:47,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-13 17:24:47,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:47,561 INFO L225 Difference]: With dead ends: 1115 [2020-10-13 17:24:47,561 INFO L226 Difference]: Without dead ends: 1092 [2020-10-13 17:24:47,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:24:47,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2020-10-13 17:24:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1002. [2020-10-13 17:24:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2020-10-13 17:24:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1312 transitions. [2020-10-13 17:24:47,940 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1312 transitions. Word has length 37 [2020-10-13 17:24:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:47,940 INFO L479 AbstractCegarLoop]: Abstraction has 1002 states and 1312 transitions. [2020-10-13 17:24:47,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:24:47,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1312 transitions. [2020-10-13 17:24:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 17:24:47,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:47,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:24:47,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:24:47,942 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:47,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:47,943 INFO L82 PathProgramCache]: Analyzing trace with hash 460987586, now seen corresponding path program 1 times [2020-10-13 17:24:47,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:47,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370545331] [2020-10-13 17:24:47,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:48,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:48,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:49,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:51,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3217 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:24:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:52,620 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:24:52,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:52,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:52,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:52,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:52,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 17:24:52,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:52,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:52,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:52,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:52,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:52,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:52,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:52,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:24:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:52,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:24:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:52,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:52,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:52,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:24:52,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:24:52,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 17:24:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:24:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:52,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:24:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:52,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:52,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:52,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:52,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:24:52,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:52,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:52,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 17:24:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:52,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:52,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:52,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:52,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:24:52,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:24:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:52,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:24:52,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370545331] [2020-10-13 17:24:52,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:24:52,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 17:24:52,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505098267] [2020-10-13 17:24:52,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:24:52,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:52,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:24:52,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:24:52,891 INFO L87 Difference]: Start difference. First operand 1002 states and 1312 transitions. Second operand 6 states. [2020-10-13 17:24:55,866 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-13 17:24:57,606 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-13 17:25:14,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:14,255 INFO L93 Difference]: Finished difference Result 1135 states and 1499 transitions. [2020-10-13 17:25:14,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:25:14,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-13 17:25:14,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:14,263 INFO L225 Difference]: With dead ends: 1135 [2020-10-13 17:25:14,263 INFO L226 Difference]: Without dead ends: 1112 [2020-10-13 17:25:14,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:25:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2020-10-13 17:25:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1022. [2020-10-13 17:25:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2020-10-13 17:25:14,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1340 transitions. [2020-10-13 17:25:14,650 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1340 transitions. Word has length 41 [2020-10-13 17:25:14,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:14,651 INFO L479 AbstractCegarLoop]: Abstraction has 1022 states and 1340 transitions. [2020-10-13 17:25:14,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:25:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1340 transitions. [2020-10-13 17:25:14,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 17:25:14,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:14,654 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:25:14,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:25:14,655 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:14,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:14,655 INFO L82 PathProgramCache]: Analyzing trace with hash -202600599, now seen corresponding path program 2 times [2020-10-13 17:25:14,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:14,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466600815] [2020-10-13 17:25:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:14,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:14,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:18,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:18,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 17:25:18,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:25:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4108 [2020-10-13 17:25:18,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:25:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:25:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:20,233 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:25:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:20,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:20,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:20,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:20,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-13 17:25:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:20,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:20,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:20,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:20,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:25:20,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:20,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:25:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:20,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:20,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:20,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:20,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:25:20,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:25:20,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 17:25:20,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 17:25:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:25:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:20,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:20,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 17:25:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:20,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:20,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:20,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:20,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:25:20,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 17:25:20,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466600815] [2020-10-13 17:25:20,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:25:20,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:25:20,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818248580] [2020-10-13 17:25:20,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:25:20,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:20,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:25:20,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:25:20,626 INFO L87 Difference]: Start difference. First operand 1022 states and 1340 transitions. Second operand 5 states. [2020-10-13 17:25:24,343 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-13 17:25:47,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:47,524 INFO L93 Difference]: Finished difference Result 1588 states and 2078 transitions. [2020-10-13 17:25:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:25:47,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-10-13 17:25:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:47,532 INFO L225 Difference]: With dead ends: 1588 [2020-10-13 17:25:47,533 INFO L226 Difference]: Without dead ends: 1491 [2020-10-13 17:25:47,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:25:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2020-10-13 17:25:47,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1360. [2020-10-13 17:25:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1360 states. [2020-10-13 17:25:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1786 transitions. [2020-10-13 17:25:47,947 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1786 transitions. Word has length 45 [2020-10-13 17:25:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:47,947 INFO L479 AbstractCegarLoop]: Abstraction has 1360 states and 1786 transitions. [2020-10-13 17:25:47,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:25:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1786 transitions. [2020-10-13 17:25:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 17:25:47,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:47,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:25:47,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 17:25:47,951 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:47,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:47,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1136755955, now seen corresponding path program 1 times [2020-10-13 17:25:47,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:47,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480422577] [2020-10-13 17:25:47,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:48,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:48,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:48,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:49,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:50,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:52,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:53,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:53,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 17:25:53,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 17:25:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-13 17:25:53,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 17:25:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:54,876 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:25:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:54,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:54,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:54,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:54,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:54,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 17:25:54,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:54,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:55,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:55,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:55,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:55,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:25:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:55,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:55,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 17:25:55,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 17:25:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 17:25:55,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:25:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:55,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:25:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:55,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:25:55,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:25:55,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:25:55,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:55,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:55,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 17:25:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:55,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:55,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:25:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:25:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:25:55,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 17:25:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:25:55,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480422577] [2020-10-13 17:25:55,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:25:55,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:25:55,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598925237] [2020-10-13 17:25:55,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:25:55,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:55,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:25:55,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:25:55,289 INFO L87 Difference]: Start difference. First operand 1360 states and 1786 transitions. Second operand 8 states. [2020-10-13 17:25:58,134 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-13 17:26:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:26:11,918 INFO L93 Difference]: Finished difference Result 3047 states and 4117 transitions. [2020-10-13 17:26:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:26:11,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-10-13 17:26:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:26:11,928 INFO L225 Difference]: With dead ends: 3047 [2020-10-13 17:26:11,928 INFO L226 Difference]: Without dead ends: 1698 [2020-10-13 17:26:11,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:26:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2020-10-13 17:26:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1364. [2020-10-13 17:26:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2020-10-13 17:26:12,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1790 transitions. [2020-10-13 17:26:12,336 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1790 transitions. Word has length 45 [2020-10-13 17:26:12,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:26:12,336 INFO L479 AbstractCegarLoop]: Abstraction has 1364 states and 1790 transitions. [2020-10-13 17:26:12,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 17:26:12,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1790 transitions. [2020-10-13 17:26:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 17:26:12,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:26:12,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:26:12,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 17:26:12,338 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:26:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:26:12,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1073288652, now seen corresponding path program 1 times [2020-10-13 17:26:12,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:26:12,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144569934] [2020-10-13 17:26:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:26:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:12,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:12,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:12,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:15,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:17,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 17:26:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 17:26:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 17:26:17,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:17,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:26:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:18,733 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 535 [2020-10-13 17:26:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:26:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:18,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:18,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:18,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:18,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-13 17:26:18,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:18,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:18,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:18,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:18,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:18,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:26:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:18,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:18,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:18,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:26:18,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:18,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:26:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:18,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:19,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:19,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 17:26:19,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 17:26:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-13 17:26:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:26:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:19,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:26:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:19,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:19,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:19,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:26:19,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:19,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:26:19,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:26:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:19,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 17:26:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:19,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:19,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:19,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:19,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:26:19,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:26:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 17:26:19,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 17:26:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 17:26:19,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144569934] [2020-10-13 17:26:19,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:26:19,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:26:19,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884221991] [2020-10-13 17:26:19,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:26:19,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:26:19,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:26:19,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:26:19,274 INFO L87 Difference]: Start difference. First operand 1364 states and 1790 transitions. Second operand 8 states.