/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=BIGGEST --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 [2020-10-12 22:40:47,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 22:40:47,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 22:40:47,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 22:40:47,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 22:40:47,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 22:40:47,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 22:40:47,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 22:40:47,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 22:40:47,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 22:40:47,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 22:40:47,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 22:40:47,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 22:40:47,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 22:40:47,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 22:40:47,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 22:40:47,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 22:40:47,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 22:40:47,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 22:40:47,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 22:40:47,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 22:40:47,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 22:40:47,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 22:40:47,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 22:40:47,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 22:40:47,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 22:40:47,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 22:40:47,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 22:40:47,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 22:40:47,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 22:40:47,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 22:40:47,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 22:40:47,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 22:40:47,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 22:40:47,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 22:40:47,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 22:40:47,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 22:40:47,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 22:40:47,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 22:40:47,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 22:40:47,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 22:40:47,702 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 [2020-10-12 22:40:47,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 22:40:47,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 22:40:47,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 22:40:47,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 22:40:47,746 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 22:40:47,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 22:40:47,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 22:40:47,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 22:40:47,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 22:40:47,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 22:40:47,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 22:40:47,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 22:40:47,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 22:40:47,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 22:40:47,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 22:40:47,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 22:40:47,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 22:40:47,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 22:40:47,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 22:40:47,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 22:40:47,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 22:40:47,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 22:40:47,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 22:40:47,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 22:40:47,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 22:40:47,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 22:40:47,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 22:40:47,752 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 22:40:48,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 22:40:48,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 22:40:48,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 22:40:48,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 22:40:48,079 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 22:40:48,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-12 22:40:48,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d697ea16/e4f8b3f56cbb41589771e922337151f0/FLAG54d61841a [2020-10-12 22:40:48,914 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 22:40:48,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-12 22:40:48,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d697ea16/e4f8b3f56cbb41589771e922337151f0/FLAG54d61841a [2020-10-12 22:40:49,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d697ea16/e4f8b3f56cbb41589771e922337151f0 [2020-10-12 22:40:49,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 22:40:49,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 22:40:49,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 22:40:49,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 22:40:49,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 22:40:49,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:40:49" (1/1) ... [2020-10-12 22:40:49,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8c36e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:49, skipping insertion in model container [2020-10-12 22:40:49,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:40:49" (1/1) ... [2020-10-12 22:40:49,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 22:40:49,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 22:40:50,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 22:40:50,700 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 22:40:50,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 22:40:51,284 INFO L208 MainTranslator]: Completed translation [2020-10-12 22:40:51,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51 WrapperNode [2020-10-12 22:40:51,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 22:40:51,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 22:40:51,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 22:40:51,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 22:40:51,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (1/1) ... [2020-10-12 22:40:51,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 22:40:51,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 22:40:51,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 22:40:51,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 22:40:51,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (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 [2020-10-12 22:40:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 22:40:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 22:40:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-12 22:40:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-12 22:40:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 22:40:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-12 22:40:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_cur_bytes [2020-10-12 22:40:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-12 22:40:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2020-10-12 22:40:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_sectors [2020-10-12 22:40:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2020-10-12 22:40:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_tq_int [2020-10-12 22:40:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_open [2020-10-12 22:40:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_release [2020-10-12 22:40:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_ioctl [2020-10-12 22:40:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_check_events [2020-10-12 22:40:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_init_units [2020-10-12 22:40:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_open [2020-10-12 22:40:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_release [2020-10-12 22:40:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-12 22:40:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-12 22:40:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-12 22:40:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_wait [2020-10-12 22:40:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_command [2020-10-12 22:40:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_completion [2020-10-12 22:40:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_req_sense [2020-10-12 22:40:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_atapi [2020-10-12 22:40:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_packet [2020-10-12 22:40:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_check_events [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_lock_door [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_tray_move [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_sleep [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_reset [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_reset [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_ready_wait [2020-10-12 22:40:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_status [2020-10-12 22:40:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_identify [2020-10-12 22:40:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe [2020-10-12 22:40:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe_capabilities [2020-10-12 22:40:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_detect [2020-10-12 22:40:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_request [2020-10-12 22:40:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_ready [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_transfer [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_start [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read_drq [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_audio_ioctl [2020-10-12 22:40:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_get_mcn [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_init [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_exit [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-12 22:40:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-12 22:40:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-12 22:40:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-12 22:40:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-12 22:40:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-12 22:40:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-12 22:40:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-12 22:40:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-12 22:40:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pcd_mutex [2020-10-12 22:40:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_cur [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-12 22:40:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_check_events [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_ioctl [2020-10-12 22:40:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_open [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_release [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure delayed_work_timer_fn [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-12 22:40:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-12 22:40:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2020-10-12 22:40:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-12 22:40:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-12 22:40:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-12 22:40:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-12 22:40:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure register_cdrom [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-12 22:40:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-12 22:40:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-12 22:40:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_cdrom [2020-10-12 22:40:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 22:40:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 22:40:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-12 22:40:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 22:40:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-12 22:40:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-12 22:40:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-12 22:40:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-12 22:40:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-12 22:40:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-12 22:40:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-12 22:40:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pcd_mutex [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pcd_mutex [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 22:40:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_open [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_release [2020-10-12 22:40:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_ioctl [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_check_events [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure register_cdrom [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_cdrom [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-12 22:40:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_bytes [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_sectors [2020-10-12 22:40:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_cur [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-12 22:40:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure ps_tq_int [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2020-10-12 22:40:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_open [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_release [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_status [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_check_events [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_tray_move [2020-10-12 22:40:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_lock_door [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_reset [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_get_mcn [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_audio_ioctl [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_packet [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_detect [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe_capabilities [2020-10-12 22:40:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read_drq [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_request [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_open [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_release [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_ioctl [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_check_events [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 22:40:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_init_units [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-12 22:40:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_wait [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_command [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_completion [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_req_sense [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_atapi [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_sleep [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_reset [2020-10-12 22:40:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_ready_wait [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_identify [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_ready [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_transfer [2020-10-12 22:40:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_start [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_init [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_exit [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 22:40:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-12 22:40:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-12 22:40:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pcd_mutex [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pcd_mutex [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pcd_mutex [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pcd_mutex [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pcd_mutex [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 22:40:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 22:40:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 22:40:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 22:40:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 22:40:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 22:40:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 22:40:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 22:40:59,406 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 22:40:59,407 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-12 22:40:59,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:40:59 BoogieIcfgContainer [2020-10-12 22:40:59,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 22:40:59,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 22:40:59,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 22:40:59,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 22:40:59,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:40:49" (1/3) ... [2020-10-12 22:40:59,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395c9f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:40:59, skipping insertion in model container [2020-10-12 22:40:59,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:51" (2/3) ... [2020-10-12 22:40:59,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395c9f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:40:59, skipping insertion in model container [2020-10-12 22:40:59,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:40:59" (3/3) ... [2020-10-12 22:40:59,429 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-12 22:40:59,440 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 22:40:59,449 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 22:40:59,463 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 22:40:59,492 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 22:40:59,492 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 22:40:59,492 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 22:40:59,492 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 22:40:59,493 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 22:40:59,493 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 22:40:59,493 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 22:40:59,493 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 22:40:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states. [2020-10-12 22:40:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 22:40:59,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:40:59,543 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] [2020-10-12 22:40:59,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:40:59,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:40:59,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1104726697, now seen corresponding path program 1 times [2020-10-12 22:40:59,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:40:59,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081873951] [2020-10-12 22:40:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:41:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:00,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:00,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:04,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:05,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:05,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:41:05,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:41:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 22:41:05,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 22:41:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 22:41:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 22:41:05,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 22:41:07,082 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:41:07,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:41:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:07,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:07,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:07,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:07,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 22:41:07,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:41:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:41:07,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:07,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:41:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:07,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:07,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:07,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:07,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:07,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 22:41:07,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:41:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:41:07,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:41:07,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081873951] [2020-10-12 22:41:07,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:41:07,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 22:41:07,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614144580] [2020-10-12 22:41:07,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 22:41:07,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:41:07,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 22:41:07,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 22:41:07,444 INFO L87 Difference]: Start difference. First operand 1031 states. Second operand 5 states. [2020-10-12 22:41:11,552 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-12 22:41:29,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:41:29,796 INFO L93 Difference]: Finished difference Result 1870 states and 2587 transitions. [2020-10-12 22:41:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 22:41:29,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-12 22:41:29,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:41:29,835 INFO L225 Difference]: With dead ends: 1870 [2020-10-12 22:41:29,835 INFO L226 Difference]: Without dead ends: 947 [2020-10-12 22:41:29,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:41:29,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-10-12 22:41:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 899. [2020-10-12 22:41:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-12 22:41:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1193 transitions. [2020-10-12 22:41:30,175 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1193 transitions. Word has length 28 [2020-10-12 22:41:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:41:30,176 INFO L479 AbstractCegarLoop]: Abstraction has 899 states and 1193 transitions. [2020-10-12 22:41:30,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 22:41:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1193 transitions. [2020-10-12 22:41:30,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 22:41:30,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:41:30,181 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] [2020-10-12 22:41:30,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 22:41:30,182 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:41:30,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:41:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash -807345065, now seen corresponding path program 1 times [2020-10-12 22:41:30,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:41:30,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917337219] [2020-10-12 22:41:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:41:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:30,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:30,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:30,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:33,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:33,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:41:33,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3262 [2020-10-12 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 22:41:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:41:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:41:35,333 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:41:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:41:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:35,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:35,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:35,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:35,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 22:41:35,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:41:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:41:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:41:35,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:41:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:35,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:35,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:41:35,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 22:41:35,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:41:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:41:35,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:41:35,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 22:41:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:41:35,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:41:35,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:41:35,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:41:35,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:41:35,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 22:41:35,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:41:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:41:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:41:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:41:35,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:41:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:41:35,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917337219] [2020-10-12 22:41:35,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:41:35,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 22:41:35,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061608238] [2020-10-12 22:41:35,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 22:41:35,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:41:35,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 22:41:35,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-12 22:41:35,771 INFO L87 Difference]: Start difference. First operand 899 states and 1193 transitions. Second operand 8 states. [2020-10-12 22:41:43,829 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 607 [2020-10-12 22:41:52,348 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 605 [2020-10-12 22:42:13,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:42:13,351 INFO L93 Difference]: Finished difference Result 2008 states and 2761 transitions. [2020-10-12 22:42:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 22:42:13,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-12 22:42:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:42:13,363 INFO L225 Difference]: With dead ends: 2008 [2020-10-12 22:42:13,363 INFO L226 Difference]: Without dead ends: 1120 [2020-10-12 22:42:13,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 22:42:13,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-12 22:42:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 904. [2020-10-12 22:42:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-10-12 22:42:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1198 transitions. [2020-10-12 22:42:13,621 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1198 transitions. Word has length 30 [2020-10-12 22:42:13,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:42:13,622 INFO L479 AbstractCegarLoop]: Abstraction has 904 states and 1198 transitions. [2020-10-12 22:42:13,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 22:42:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1198 transitions. [2020-10-12 22:42:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 22:42:13,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:42:13,624 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] [2020-10-12 22:42:13,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 22:42:13,625 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:42:13,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:42:13,625 INFO L82 PathProgramCache]: Analyzing trace with hash -750086763, now seen corresponding path program 1 times [2020-10-12 22:42:13,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:42:13,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777060701] [2020-10-12 22:42:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:42:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:13,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:14,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:14,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:42:14,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:42:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-10-12 22:42:14,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:42:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 22:42:14,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:16,377 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:42:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:42:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:16,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:16,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:16,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:16,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:16,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-12 22:42:16,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:42:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:16,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:42:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:16,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:16,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:16,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:16,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 22:42:16,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:42:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:16,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 22:42:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:16,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:16,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:42:16,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:16,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 22:42:16,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 22:42:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:42:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:42:16,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777060701] [2020-10-12 22:42:16,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:42:16,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 22:42:16,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620319292] [2020-10-12 22:42:16,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 22:42:16,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:42:16,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 22:42:16,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:42:16,984 INFO L87 Difference]: Start difference. First operand 904 states and 1198 transitions. Second operand 7 states. [2020-10-12 22:42:19,993 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-12 22:42:47,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:42:47,589 INFO L93 Difference]: Finished difference Result 1116 states and 1571 transitions. [2020-10-12 22:42:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 22:42:47,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-12 22:42:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:42:47,597 INFO L225 Difference]: With dead ends: 1116 [2020-10-12 22:42:47,597 INFO L226 Difference]: Without dead ends: 1102 [2020-10-12 22:42:47,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 22:42:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-10-12 22:42:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 899. [2020-10-12 22:42:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-12 22:42:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1192 transitions. [2020-10-12 22:42:47,804 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1192 transitions. Word has length 30 [2020-10-12 22:42:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:42:47,804 INFO L479 AbstractCegarLoop]: Abstraction has 899 states and 1192 transitions. [2020-10-12 22:42:47,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 22:42:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1192 transitions. [2020-10-12 22:42:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-12 22:42:47,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:42:47,807 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] [2020-10-12 22:42:47,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 22:42:47,807 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:42:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:42:47,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1163712031, now seen corresponding path program 1 times [2020-10-12 22:42:47,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:42:47,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417272867] [2020-10-12 22:42:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:42:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:47,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:49,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:50,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:50,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-12 22:42:50,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:42:50,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2514 [2020-10-12 22:42:50,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 22:42:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:42:50,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:51,987 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:42:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:42:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:52,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:52,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:52,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:52,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 22:42:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:52,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:42:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:52,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:52,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:52,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:52,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:52,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:42:52,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:52,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:52,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:42:52,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:52,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 22:42:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:52,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:52,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:52,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 22:42:52,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 22:42:52,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:42:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 22:42:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:42:52,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:52,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 22:42:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:52,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:52,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:52,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:42:52,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:42:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:52,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:42:52,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:42:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:42:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:42:52,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:42:52,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:42:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:42:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:42:52,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:42:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:42:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:42:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:42:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:42:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:42:52,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417272867] [2020-10-12 22:42:52,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:42:52,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 22:42:52,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242735415] [2020-10-12 22:42:52,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 22:42:52,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:42:52,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 22:42:52,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 22:42:52,309 INFO L87 Difference]: Start difference. First operand 899 states and 1192 transitions. Second operand 5 states. [2020-10-12 22:42:55,093 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 604 [2020-10-12 22:43:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:43:15,483 INFO L93 Difference]: Finished difference Result 974 states and 1306 transitions. [2020-10-12 22:43:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 22:43:15,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-10-12 22:43:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:43:15,492 INFO L225 Difference]: With dead ends: 974 [2020-10-12 22:43:15,493 INFO L226 Difference]: Without dead ends: 954 [2020-10-12 22:43:15,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 22:43:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-10-12 22:43:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 900. [2020-10-12 22:43:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-10-12 22:43:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1193 transitions. [2020-10-12 22:43:15,790 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1193 transitions. Word has length 35 [2020-10-12 22:43:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:43:15,790 INFO L479 AbstractCegarLoop]: Abstraction has 900 states and 1193 transitions. [2020-10-12 22:43:15,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 22:43:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1193 transitions. [2020-10-12 22:43:15,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 22:43:15,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:43:15,793 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] [2020-10-12 22:43:15,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 22:43:15,793 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:43:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:43:15,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1164562068, now seen corresponding path program 1 times [2020-10-12 22:43:15,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:43:15,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486785844] [2020-10-12 22:43:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:43:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:15,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:15,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:17,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:19,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:19,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 22:43:19,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:43:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3765 [2020-10-12 22:43:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:43:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 22:43:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 22:43:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,192 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:43:21,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:43:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:21,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:21,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:21,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:21,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-12 22:43:21,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:21,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:43:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:21,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:21,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:21,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:21,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:43:21,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:21,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:21,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 22:43:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:21,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:21,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:21,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 22:43:21,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:21,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 22:43:21,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:43:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 22:43:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 22:43:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 22:43:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:21,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:21,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:21,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:21,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:21,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:43:21,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:43:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 22:43:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:21,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:21,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:21,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:21,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:43:21,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:21,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:43:21,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:21,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 22:43:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:21,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:21,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:21,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:21,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 22:43:21,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:43:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:43:21,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486785844] [2020-10-12 22:43:21,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 22:43:21,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 22:43:21,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337748510] [2020-10-12 22:43:21,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 22:43:21,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:43:21,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 22:43:21,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 22:43:21,534 INFO L87 Difference]: Start difference. First operand 900 states and 1193 transitions. Second operand 6 states. [2020-10-12 22:43:25,132 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 604 [2020-10-12 22:43:34,264 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 604 [2020-10-12 22:43:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:43:53,191 INFO L93 Difference]: Finished difference Result 985 states and 1322 transitions. [2020-10-12 22:43:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 22:43:53,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-12 22:43:53,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:43:53,200 INFO L225 Difference]: With dead ends: 985 [2020-10-12 22:43:53,200 INFO L226 Difference]: Without dead ends: 965 [2020-10-12 22:43:53,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 22:43:53,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2020-10-12 22:43:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 911. [2020-10-12 22:43:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-10-12 22:43:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1209 transitions. [2020-10-12 22:43:53,487 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1209 transitions. Word has length 44 [2020-10-12 22:43:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:43:53,488 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1209 transitions. [2020-10-12 22:43:53,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 22:43:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1209 transitions. [2020-10-12 22:43:53,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 22:43:53,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:43:53,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 22:43:53,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 22:43:53,491 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:43:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:43:53,491 INFO L82 PathProgramCache]: Analyzing trace with hash 708685696, now seen corresponding path program 1 times [2020-10-12 22:43:53,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:43:53,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724918362] [2020-10-12 22:43:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:43:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:53,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 22:43:56,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:43:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2775 [2020-10-12 22:43:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 22:43:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 22:43:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 22:43:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:57,996 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:43:57,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:43:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:58,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:58,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:58,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 22:43:58,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:58,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:43:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:58,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:58,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:58,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:43:58,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:43:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:43:58,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:58,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 22:43:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:58,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 22:43:58,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:43:58,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 22:43:58,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:58,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:43:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:58,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:58,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 22:43:58,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:58,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 22:43:58,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:58,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:58,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:58,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:43:58,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:43:58,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 22:43:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:58,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:58,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:58,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:43:58,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:43:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:43:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 22:43:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:43:58,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:43:58,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:43:58,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:43:58,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:43:58,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:43:58,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:43:58,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:43:58,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:43:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:43:58,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:43:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:43:58,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724918362] [2020-10-12 22:43:58,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:43:58,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 22:43:58,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248817637] [2020-10-12 22:43:58,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 22:43:58,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:43:58,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 22:43:58,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 22:43:58,314 INFO L87 Difference]: Start difference. First operand 911 states and 1209 transitions. Second operand 6 states. [2020-10-12 22:44:09,083 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 603 [2020-10-12 22:44:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:44:23,304 INFO L93 Difference]: Finished difference Result 957 states and 1286 transitions. [2020-10-12 22:44:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 22:44:23,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-12 22:44:23,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:44:23,312 INFO L225 Difference]: With dead ends: 957 [2020-10-12 22:44:23,312 INFO L226 Difference]: Without dead ends: 954 [2020-10-12 22:44:23,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:44:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-10-12 22:44:23,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 910. [2020-10-12 22:44:23,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2020-10-12 22:44:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1207 transitions. [2020-10-12 22:44:23,558 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1207 transitions. Word has length 46 [2020-10-12 22:44:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:44:23,558 INFO L479 AbstractCegarLoop]: Abstraction has 910 states and 1207 transitions. [2020-10-12 22:44:23,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 22:44:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1207 transitions. [2020-10-12 22:44:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 22:44:23,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:44:23,564 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] [2020-10-12 22:44:23,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 22:44:23,564 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:44:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:44:23,565 INFO L82 PathProgramCache]: Analyzing trace with hash 59661898, now seen corresponding path program 1 times [2020-10-12 22:44:23,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:44:23,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918042563] [2020-10-12 22:44:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:44:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:23,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:23,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:23,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:24,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:25,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:25,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:25,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:28,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:28,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 22:44:28,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 22:44:28,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 22:44:28,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:44:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 22:44:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:44:28,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:44:30,418 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 601 [2020-10-12 22:44:30,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:44:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:30,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:30,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:44:30,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:30,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 22:44:30,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:44:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:44:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:44:30,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:30,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:44:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:44:30,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 22:44:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:30,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 22:44:30,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 22:44:30,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 22:44:30,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 22:44:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 22:44:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:44:30,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 22:44:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:30,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:30,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:44:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:44:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 22:44:30,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:44:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 22:44:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:44:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 22:44:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:44:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:44:30,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:44:30,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 22:44:30,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 22:44:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 22:44:30,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:44:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:44:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:44:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 22:44:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:44:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:44:30,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918042563] [2020-10-12 22:44:30,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:44:30,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 22:44:30,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047112294] [2020-10-12 22:44:30,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 22:44:30,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:44:30,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 22:44:30,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 22:44:30,931 INFO L87 Difference]: Start difference. First operand 910 states and 1207 transitions. Second operand 11 states.