/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--pcd.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:22:30,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:22:30,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:22:30,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:22:30,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:22:30,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:22:30,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:22:30,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:22:30,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:22:30,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:22:30,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:22:30,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:22:30,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:22:30,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:22:30,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:22:30,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:22:30,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:22:30,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:22:30,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:22:30,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:22:30,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:22:30,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:22:30,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:22:30,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:22:30,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:22:30,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:22:30,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:22:30,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:22:30,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:22:30,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:22:30,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:22:30,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:22:30,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:22:30,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:22:30,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:22:30,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:22:30,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:22:30,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:22:30,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:22:30,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:22:30,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:22:30,143 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 17:22:30,166 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:22:30,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:22:30,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:22:30,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:22:30,168 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:22:30,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:22:30,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:22:30,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:22:30,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:22:30,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:22:30,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:22:30,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:22:30,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:22:30,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:22:30,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:22:30,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:22:30,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:22:30,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:22:30,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:22:30,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:22:30,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:22:30,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:22:30,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:22:30,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:22:30,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:22:30,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:22:30,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:22:30,172 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 17:22:30,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:22:30,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:22:30,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:22:30,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:22:30,504 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:22:30,505 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-13 17:22:30,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/345625868/a5d273848b324952a5ad2409f39bd5f0/FLAG3923020b1 [2020-10-13 17:22:31,299 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:22:31,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-13 17:22:31,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/345625868/a5d273848b324952a5ad2409f39bd5f0/FLAG3923020b1 [2020-10-13 17:22:31,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/345625868/a5d273848b324952a5ad2409f39bd5f0 [2020-10-13 17:22:31,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:22:31,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:22:31,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:31,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:22:31,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:22:31,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:31" (1/1) ... [2020-10-13 17:22:31,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa6e4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:31, skipping insertion in model container [2020-10-13 17:22:31,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:31" (1/1) ... [2020-10-13 17:22:31,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:22:31,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:22:33,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:22:33,102 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:22:33,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:22:33,781 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:22:33,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33 WrapperNode [2020-10-13 17:22:33,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:33,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:22:33,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:22:33,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:22:33,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:33,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:33,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:33,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:33,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:33,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:34,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (1/1) ... [2020-10-13 17:22:34,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:22:34,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:22:34,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:22:34,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:22:34,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (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 17:22:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:22:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:22:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-13 17:22:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-13 17:22:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 17:22:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 17:22:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_cur_bytes [2020-10-13 17:22:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-13 17:22:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2020-10-13 17:22:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_sectors [2020-10-13 17:22:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2020-10-13 17:22:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_tq_int [2020-10-13 17:22:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_open [2020-10-13 17:22:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_release [2020-10-13 17:22:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_ioctl [2020-10-13 17:22:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_check_events [2020-10-13 17:22:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_init_units [2020-10-13 17:22:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_open [2020-10-13 17:22:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_release [2020-10-13 17:22:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-13 17:22:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-13 17:22:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-13 17:22:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_wait [2020-10-13 17:22:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_command [2020-10-13 17:22:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_completion [2020-10-13 17:22:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_req_sense [2020-10-13 17:22:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_atapi [2020-10-13 17:22:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_packet [2020-10-13 17:22:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_check_events [2020-10-13 17:22:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_lock_door [2020-10-13 17:22:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_tray_move [2020-10-13 17:22:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_sleep [2020-10-13 17:22:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_reset [2020-10-13 17:22:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_reset [2020-10-13 17:22:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_ready_wait [2020-10-13 17:22:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_status [2020-10-13 17:22:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_identify [2020-10-13 17:22:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe [2020-10-13 17:22:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe_capabilities [2020-10-13 17:22:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_detect [2020-10-13 17:22:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_request [2020-10-13 17:22:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2020-10-13 17:22:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_ready [2020-10-13 17:22:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_transfer [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_start [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read_drq [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_audio_ioctl [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_get_mcn [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_init [2020-10-13 17:22:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_exit [2020-10-13 17:22:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:22:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:22:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:22:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:22:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-13 17:22:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-13 17:22:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-13 17:22:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:22:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-13 17:22:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-13 17:22:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-10-13 17:22:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-13 17:22:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-13 17:22:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-13 17:22:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:22:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:22:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:22:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:22:34,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:22:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:22:34,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:22:34,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:22:34,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pcd_mutex [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pcd_mutex [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pcd_mutex [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pcd_mutex [2020-10-13 17:22:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pcd_mutex [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pcd_mutex [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pcd_mutex [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_cur [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 17:22:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-13 17:22:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_check_events [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_ioctl [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_open [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_release [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure delayed_work_timer_fn [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:22:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:22:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-13 17:22:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-13 17:22:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2020-10-13 17:22:34,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-13 17:22:34,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-13 17:22:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-13 17:22:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-13 17:22:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-13 17:22:34,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-13 17:22:34,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:22:34,197 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-13 17:22:34,197 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-13 17:22:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure register_cdrom [2020-10-13 17:22:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-13 17:22:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 17:22:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-13 17:22:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_cdrom [2020-10-13 17:22:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:22:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 17:22:34,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-13 17:22:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:22:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:22:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:22:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 17:22:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-13 17:22:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:22:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-13 17:22:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-13 17:22:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:22:34,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:22:34,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:22:34,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-13 17:22:34,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-13 17:22:34,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:22:34,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pcd_mutex [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pcd_mutex [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_open [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_release [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_ioctl [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_check_events [2020-10-13 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure register_cdrom [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_cdrom [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_bytes [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:22:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_sectors [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_cur [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-13 17:22:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-13 17:22:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure ps_tq_int [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_open [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_release [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_status [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_check_events [2020-10-13 17:22:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_tray_move [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_lock_door [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_reset [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_get_mcn [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_audio_ioctl [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_packet [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_detect [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe_capabilities [2020-10-13 17:22:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read_drq [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_request [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_open [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_release [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_ioctl [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_check_events [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_init_units [2020-10-13 17:22:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_wait [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_command [2020-10-13 17:22:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_completion [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_req_sense [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_atapi [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_sleep [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_reset [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_ready_wait [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_identify [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 17:22:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe [2020-10-13 17:22:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2020-10-13 17:22:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_ready [2020-10-13 17:22:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_transfer [2020-10-13 17:22:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_start [2020-10-13 17:22:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_init [2020-10-13 17:22:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_exit [2020-10-13 17:22:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:22:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:22:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:22:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:22:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:22:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:22:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pcd_mutex [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pcd_mutex [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pcd_mutex [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pcd_mutex [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pcd_mutex [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 17:22:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:22:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:22:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 17:22:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 17:22:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 17:22:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 17:22:41,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:22:41,517 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-13 17:22:41,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:22:41 BoogieIcfgContainer [2020-10-13 17:22:41,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:22:41,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:22:41,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:22:41,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:22:41,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:22:31" (1/3) ... [2020-10-13 17:22:41,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb91e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:22:41, skipping insertion in model container [2020-10-13 17:22:41,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:33" (2/3) ... [2020-10-13 17:22:41,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb91e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:22:41, skipping insertion in model container [2020-10-13 17:22:41,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:22:41" (3/3) ... [2020-10-13 17:22:41,540 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-13 17:22:41,550 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:22:41,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:22:41,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:22:41,604 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:22:41,605 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:22:41,605 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:22:41,605 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:22:41,605 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:22:41,605 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:22:41,605 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:22:41,605 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:22:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states. [2020-10-13 17:22:41,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-13 17:22:41,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:22:41,678 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 17:22:41,679 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:22:41,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:22:41,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1104726697, now seen corresponding path program 1 times [2020-10-13 17:22:41,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:22:41,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507825018] [2020-10-13 17:22:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:22:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:22:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:42,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:46,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:47,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:22:47,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:22:47,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:22:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 17:22:47,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:22:47,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:22:47,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:22:47,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:22:47,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:22:49,030 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-13 17:22:49,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:22:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:22:49,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:49,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:22:49,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:22:49,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:22:49,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-13 17:22:49,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:22:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:22:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:22:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:22:49,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:22:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:22:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:22:49,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:22:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:22:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:22:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:22:49,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:22:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:22:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:22:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:22:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:22:49,343 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 17:22:49,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507825018] [2020-10-13 17:22:49,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:22:49,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:22:49,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367903429] [2020-10-13 17:22:49,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:22:49,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:22:49,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:22:49,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:22:49,369 INFO L87 Difference]: Start difference. First operand 1031 states. Second operand 5 states. [2020-10-13 17:22:52,185 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-13 17:23:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:23,145 INFO L93 Difference]: Finished difference Result 2701 states and 3779 transitions. [2020-10-13 17:23:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:23:23,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-13 17:23:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:23,184 INFO L225 Difference]: With dead ends: 2701 [2020-10-13 17:23:23,184 INFO L226 Difference]: Without dead ends: 1772 [2020-10-13 17:23:23,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:23:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2020-10-13 17:23:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1668. [2020-10-13 17:23:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-10-13 17:23:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2233 transitions. [2020-10-13 17:23:23,760 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2233 transitions. Word has length 28 [2020-10-13 17:23:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:23,760 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2233 transitions. [2020-10-13 17:23:23,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:23:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2233 transitions. [2020-10-13 17:23:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 17:23:23,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:23,765 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 17:23:23,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:23:23,766 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:23,767 INFO L82 PathProgramCache]: Analyzing trace with hash -807345065, now seen corresponding path program 1 times [2020-10-13 17:23:23,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:23,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052221202] [2020-10-13 17:23:23,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:24,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:24,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:26,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:23:27,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:23:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3140 [2020-10-13 17:23:27,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:23:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:28,614 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-13 17:23:28,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 17:23:28,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:28,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:28,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:28,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:28,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:28,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:23:28,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:28,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:29,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:29,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:23:29,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:29,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:23:29,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:29,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:29,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:29,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:29,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:29,047 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 17:23:29,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052221202] [2020-10-13 17:23:29,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:29,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:29,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658333695] [2020-10-13 17:23:29,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:29,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:29,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:29,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:29,054 INFO L87 Difference]: Start difference. First operand 1668 states and 2233 transitions. Second operand 6 states. [2020-10-13 17:23:32,304 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-13 17:23:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:54,505 INFO L93 Difference]: Finished difference Result 2082 states and 2958 transitions. [2020-10-13 17:23:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:23:54,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-13 17:23:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:54,521 INFO L225 Difference]: With dead ends: 2082 [2020-10-13 17:23:54,522 INFO L226 Difference]: Without dead ends: 2071 [2020-10-13 17:23:54,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:23:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2020-10-13 17:23:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 1669. [2020-10-13 17:23:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1669 states. [2020-10-13 17:23:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2234 transitions. [2020-10-13 17:23:54,934 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2234 transitions. Word has length 30 [2020-10-13 17:23:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:54,935 INFO L479 AbstractCegarLoop]: Abstraction has 1669 states and 2234 transitions. [2020-10-13 17:23:54,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:23:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2234 transitions. [2020-10-13 17:23:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 17:23:54,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:54,937 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 17:23:54,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:23:54,938 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:54,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:54,938 INFO L82 PathProgramCache]: Analyzing trace with hash -750086763, now seen corresponding path program 1 times [2020-10-13 17:23:54,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:54,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38618488] [2020-10-13 17:23:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:55,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:55,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:56,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:23:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:23:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-10-13 17:23:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:23:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 17:23:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:57,759 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-13 17:23:57,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:57,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:57,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:57,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:57,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:57,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 17:23:57,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:58,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:58,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:58,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:58,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:58,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:23:58,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:58,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:58,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:58,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:58,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:23:58,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:23:58,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:23:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:58,099 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 17:23:58,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38618488] [2020-10-13 17:23:58,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:58,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:58,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929724353] [2020-10-13 17:23:58,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:58,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:58,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:58,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:58,101 INFO L87 Difference]: Start difference. First operand 1669 states and 2234 transitions. Second operand 6 states. [2020-10-13 17:24:01,700 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-13 17:24:23,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:23,048 INFO L93 Difference]: Finished difference Result 2061 states and 2930 transitions. [2020-10-13 17:24:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:24:23,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-13 17:24:23,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:23,062 INFO L225 Difference]: With dead ends: 2061 [2020-10-13 17:24:23,062 INFO L226 Difference]: Without dead ends: 2058 [2020-10-13 17:24:23,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:24:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-10-13 17:24:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 1668. [2020-10-13 17:24:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-10-13 17:24:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2232 transitions. [2020-10-13 17:24:23,471 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2232 transitions. Word has length 30 [2020-10-13 17:24:23,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:23,471 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2232 transitions. [2020-10-13 17:24:23,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:24:23,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2232 transitions. [2020-10-13 17:24:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:24:23,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:23,475 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 17:24:23,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:24:23,476 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:23,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1778367529, now seen corresponding path program 1 times [2020-10-13 17:24:23,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:23,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665997256] [2020-10-13 17:24:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:23,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:24,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:24,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:24:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:24:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-10-13 17:24:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:24:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 17:24:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:26,332 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-13 17:24:26,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:26,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:26,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:26,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:26,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-13 17:24:26,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:24:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:26,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:26,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:26,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:26,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:26,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:24:26,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:24:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:26,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:24:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:26,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:26,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:26,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:24:26,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:24:26,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:26,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:26,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 17:24:26,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:24:26,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:26,887 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 17:24:26,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665997256] [2020-10-13 17:24:26,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:24:26,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:24:26,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199558894] [2020-10-13 17:24:26,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:24:26,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:26,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:24:26,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:24:26,890 INFO L87 Difference]: Start difference. First operand 1668 states and 2232 transitions. Second operand 7 states. [2020-10-13 17:24:33,583 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-13 17:25:02,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:02,754 INFO L93 Difference]: Finished difference Result 3595 states and 4931 transitions. [2020-10-13 17:25:02,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:25:02,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-13 17:25:02,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:02,767 INFO L225 Difference]: With dead ends: 3595 [2020-10-13 17:25:02,767 INFO L226 Difference]: Without dead ends: 1938 [2020-10-13 17:25:02,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:25:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2020-10-13 17:25:03,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1668. [2020-10-13 17:25:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-10-13 17:25:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2230 transitions. [2020-10-13 17:25:03,259 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2230 transitions. Word has length 31 [2020-10-13 17:25:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:03,260 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2230 transitions. [2020-10-13 17:25:03,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:25:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2230 transitions. [2020-10-13 17:25:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-13 17:25:03,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:03,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:25:03,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:25:03,263 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:03,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1714820237, now seen corresponding path program 1 times [2020-10-13 17:25:03,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:03,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96742478] [2020-10-13 17:25:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:03,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:03,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:05,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:05,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 17:25:05,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:25:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2297 [2020-10-13 17:25:05,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:05,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 17:25:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:07,372 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-13 17:25:07,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:07,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:07,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:07,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:07,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 17:25:07,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:07,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:07,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:07,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:07,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:07,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:07,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:25:07,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:25:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:07,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:07,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:07,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:25:07,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:07,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:25:07,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:07,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:07,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:25:07,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:07,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:07,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:25:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:07,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:07,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:07,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:07,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:07,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:25:07,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:25:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:07,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:07,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:07,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:07,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:07,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:07,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:07,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:25:07,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:25:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:07,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:07,673 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 17:25:07,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96742478] [2020-10-13 17:25:07,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:25:07,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:25:07,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417816273] [2020-10-13 17:25:07,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:25:07,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:07,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:25:07,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:25:07,676 INFO L87 Difference]: Start difference. First operand 1668 states and 2230 transitions. Second operand 5 states. [2020-10-13 17:25:10,815 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 604 [2020-10-13 17:25:32,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:32,424 INFO L93 Difference]: Finished difference Result 1809 states and 2448 transitions. [2020-10-13 17:25:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 17:25:32,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-13 17:25:32,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:32,435 INFO L225 Difference]: With dead ends: 1809 [2020-10-13 17:25:32,436 INFO L226 Difference]: Without dead ends: 1778 [2020-10-13 17:25:32,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:25:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2020-10-13 17:25:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1670. [2020-10-13 17:25:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-10-13 17:25:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2232 transitions. [2020-10-13 17:25:33,098 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2232 transitions. Word has length 36 [2020-10-13 17:25:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:33,101 INFO L479 AbstractCegarLoop]: Abstraction has 1670 states and 2232 transitions. [2020-10-13 17:25:33,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:25:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2232 transitions. [2020-10-13 17:25:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 17:25:33,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:33,103 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 17:25:33,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:25:33,104 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:33,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:33,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1742200096, now seen corresponding path program 1 times [2020-10-13 17:25:33,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:33,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347525402] [2020-10-13 17:25:33,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:33,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:34,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:36,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:36,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 17:25:36,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:25:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3496 [2020-10-13 17:25:36,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:25:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:25:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,489 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-13 17:25:38,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 17:25:38,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:25:38,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:25:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 17:25:38,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:25:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 17:25:38,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-13 17:25:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 17:25:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:25:38,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 17:25:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:25:38,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 17:25:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:25:38,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,782 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 17:25:38,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347525402] [2020-10-13 17:25:38,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:25:38,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:25:38,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691367508] [2020-10-13 17:25:38,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:25:38,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:38,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:25:38,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:25:38,784 INFO L87 Difference]: Start difference. First operand 1670 states and 2232 transitions. Second operand 5 states. [2020-10-13 17:25:41,911 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-13 17:26:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:26:11,988 INFO L93 Difference]: Finished difference Result 3174 states and 4283 transitions. [2020-10-13 17:26:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:26:11,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-10-13 17:26:11,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:26:12,007 INFO L225 Difference]: With dead ends: 3174 [2020-10-13 17:26:12,007 INFO L226 Difference]: Without dead ends: 3091 [2020-10-13 17:26:12,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:26:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2020-10-13 17:26:12,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2883. [2020-10-13 17:26:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2883 states. [2020-10-13 17:26:12,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 3866 transitions. [2020-10-13 17:26:12,669 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 3866 transitions. Word has length 45 [2020-10-13 17:26:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:26:12,669 INFO L479 AbstractCegarLoop]: Abstraction has 2883 states and 3866 transitions. [2020-10-13 17:26:12,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:26:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 3866 transitions. [2020-10-13 17:26:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 17:26:12,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:26:12,670 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 17:26:12,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:26:12,671 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:26:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:26:12,671 INFO L82 PathProgramCache]: Analyzing trace with hash -670955452, now seen corresponding path program 1 times [2020-10-13 17:26:12,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:26:12,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299120972] [2020-10-13 17:26:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:26:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:12,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:12,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:13,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:17,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:26:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:17,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0