/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SHALLOWEST --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 language data_model -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 08:10:40,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 08:10:40,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 08:10:40,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 08:10:40,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 08:10:40,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 08:10:40,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 08:10:40,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 08:10:40,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 08:10:40,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 08:10:40,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 08:10:40,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 08:10:40,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 08:10:40,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 08:10:40,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 08:10:40,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 08:10:40,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 08:10:40,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 08:10:40,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 08:10:40,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 08:10:40,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 08:10:40,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 08:10:40,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 08:10:40,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 08:10:40,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 08:10:40,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 08:10:40,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 08:10:40,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 08:10:40,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 08:10:40,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 08:10:40,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 08:10:40,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 08:10:40,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 08:10:40,900 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 [2020-10-27 08:10:40,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 08:10:40,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 08:10:40,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 08:10:40,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 08:10:40,937 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 08:10:40,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 08:10:40,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 08:10:40,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 08:10:40,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 08:10:40,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 08:10:40,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 08:10:40,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 08:10:40,941 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 08:10:40,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 08:10:40,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 08:10:40,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 08:10:40,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 08:10:40,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 08:10:40,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 08:10:40,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 08:10:40,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 08:10:40,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 08:10:40,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 08:10:40,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 08:10:40,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 08:10:40,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 08:10:40,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 08:10:40,945 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 08:10:41,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 08:10:41,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 08:10:41,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 08:10:41,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 08:10:41,466 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 08:10:41,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-27 08:10:41,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/829f4d8a5/c09b4d64207646b09192aef4d345bb19/FLAG8cdc9e131 [2020-10-27 08:10:42,510 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 08:10:42,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-27 08:10:42,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/829f4d8a5/c09b4d64207646b09192aef4d345bb19/FLAG8cdc9e131 [2020-10-27 08:10:43,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/829f4d8a5/c09b4d64207646b09192aef4d345bb19 [2020-10-27 08:10:43,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 08:10:43,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 08:10:43,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 08:10:43,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 08:10:43,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 08:10:43,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:10:43" (1/1) ... [2020-10-27 08:10:43,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641e0d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:43, skipping insertion in model container [2020-10-27 08:10:43,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:10:43" (1/1) ... [2020-10-27 08:10:43,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 08:10:43,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 08:10:44,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:10:44,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 08:10:44,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:10:44,987 INFO L208 MainTranslator]: Completed translation [2020-10-27 08:10:44,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44 WrapperNode [2020-10-27 08:10:44,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 08:10:44,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 08:10:44,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 08:10:44,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 08:10:45,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (1/1) ... [2020-10-27 08:10:45,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 08:10:45,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 08:10:45,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 08:10:45,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 08:10:45,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (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 [2020-10-27 08:10:45,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 08:10:45,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 08:10:45,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-27 08:10:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-27 08:10:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 08:10:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-27 08:10:45,426 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-27 08:10:45,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2020-10-27 08:10:45,427 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2020-10-27 08:10:45,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_cur_bytes [2020-10-27 08:10:45,427 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-27 08:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2020-10-27 08:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2020-10-27 08:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2020-10-27 08:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_sectors [2020-10-27 08:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2020-10-27 08:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_tq_int [2020-10-27 08:10:45,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_init_units [2020-10-27 08:10:45,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_open [2020-10-27 08:10:45,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2020-10-27 08:10:45,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2020-10-27 08:10:45,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_release [2020-10-27 08:10:45,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2020-10-27 08:10:45,431 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-27 08:10:45,431 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-27 08:10:45,431 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-27 08:10:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2020-10-27 08:10:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2020-10-27 08:10:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2020-10-27 08:10:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2020-10-27 08:10:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2020-10-27 08:10:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_eject [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2020-10-27 08:10:45,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_get_capacity [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_detect [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_start [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ready [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_end_request [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_request [2020-10-27 08:10:45,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_next_buf [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read_start [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_read_drq [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write_start [2020-10-27 08:10:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pf_write_done [2020-10-27 08:10:45,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_init [2020-10-27 08:10:45,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_exit [2020-10-27 08:10:45,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 08:10:45,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-27 08:10:45,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-27 08:10:45,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-27 08:10:45,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-27 08:10:45,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-27 08:10:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-27 08:10:45,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-27 08:10:45,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2020-10-27 08:10:45,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 08:10:45,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 08:10:45,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 08:10:45,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-27 08:10:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-27 08:10:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-27 08:10:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-27 08:10:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-27 08:10:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-27 08:10:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-27 08:10:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-27 08:10:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 08:10:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 08:10:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_cur [2020-10-27 08:10:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-27 08:10:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-27 08:10:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-27 08:10:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-27 08:10:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-27 08:10:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 08:10:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2020-10-27 08:10:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-27 08:10:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2020-10-27 08:10:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-27 08:10:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 08:10:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-27 08:10:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 08:10:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-27 08:10:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-27 08:10:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2020-10-27 08:10:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-27 08:10:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-27 08:10:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-27 08:10:45,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-27 08:10:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-27 08:10:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-27 08:10:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 08:10:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-27 08:10:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-27 08:10:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-27 08:10:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-27 08:10:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-27 08:10:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 08:10:45,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-27 08:10:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 08:10:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 08:10:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 08:10:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 08:10:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 08:10:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 08:10:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 08:10:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-27 08:10:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-27 08:10:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-27 08:10:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-27 08:10:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 08:10:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-27 08:10:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-27 08:10:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-27 08:10:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-27 08:10:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-10-27 08:10:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-27 08:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-27 08:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-27 08:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-27 08:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-27 08:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-27 08:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_bytes [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 08:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_sectors [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_cur [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-27 08:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-27 08:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-27 08:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2020-10-27 08:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure ps_tq_int [2020-10-27 08:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2020-10-27 08:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure pf_open [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_request [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure pf_release [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure pf_detect [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read [2020-10-27 08:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read_start [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write_start [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_read_drq [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure do_pf_write_done [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure pf_eject [2020-10-27 08:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure pf_init_units [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-27 08:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2020-10-27 08:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pf_get_capacity [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pf_start [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ready [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pf_end_request [2020-10-27 08:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pf_next_buf [2020-10-27 08:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2020-10-27 08:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure pf_init [2020-10-27 08:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure pf_exit [2020-10-27 08:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 08:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 08:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 08:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 08:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-27 08:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-27 08:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-27 08:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-27 08:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-27 08:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-27 08:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-27 08:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-27 08:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pf_mutex [2020-10-27 08:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pf_mutex [2020-10-27 08:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pf_mutex [2020-10-27 08:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pf_mutex [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pf_mutex [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 08:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 08:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 08:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 08:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 08:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 08:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 08:10:53,846 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 08:10:53,847 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 08:10:53,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:10:53 BoogieIcfgContainer [2020-10-27 08:10:53,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 08:10:53,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 08:10:53,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 08:10:53,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 08:10:53,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:10:43" (1/3) ... [2020-10-27 08:10:53,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a19e723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:10:53, skipping insertion in model container [2020-10-27 08:10:53,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:44" (2/3) ... [2020-10-27 08:10:53,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a19e723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:10:53, skipping insertion in model container [2020-10-27 08:10:53,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:10:53" (3/3) ... [2020-10-27 08:10:53,864 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2020-10-27 08:10:53,879 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 08:10:53,888 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 08:10:53,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 08:10:53,944 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 08:10:53,944 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 08:10:53,945 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 08:10:53,945 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 08:10:53,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 08:10:53,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 08:10:53,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 08:10:53,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 08:10:53,985 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states. [2020-10-27 08:10:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 08:10:53,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:10:53,995 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] [2020-10-27 08:10:53,996 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:10:54,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:10:54,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1990764248, now seen corresponding path program 1 times [2020-10-27 08:10:54,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:10:54,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529456725] [2020-10-27 08:10:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:10:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:10:54,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:54,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:59,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:10:59,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 08:10:59,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:10:59,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 08:10:59,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:10:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 08:10:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:10:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 08:10:59,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 08:11:02,043 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:11:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:11:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:02,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:02,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-27 08:11:02,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:11:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:11:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:02,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:11:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:02,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:02,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:02,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:02,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 08:11:02,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:11:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:11:02,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529456725] [2020-10-27 08:11:02,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:11:02,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 08:11:02,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882838439] [2020-10-27 08:11:02,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 08:11:02,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:11:02,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 08:11:02,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 08:11:02,449 INFO L87 Difference]: Start difference. First operand 979 states. Second operand 5 states. [2020-10-27 08:11:05,476 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 549 [2020-10-27 08:11:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:11:26,226 INFO L93 Difference]: Finished difference Result 1431 states and 1957 transitions. [2020-10-27 08:11:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:11:26,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-27 08:11:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:11:26,257 INFO L225 Difference]: With dead ends: 1431 [2020-10-27 08:11:26,258 INFO L226 Difference]: Without dead ends: 832 [2020-10-27 08:11:26,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:11:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-10-27 08:11:26,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 779. [2020-10-27 08:11:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-10-27 08:11:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1015 transitions. [2020-10-27 08:11:26,713 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1015 transitions. Word has length 30 [2020-10-27 08:11:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:11:26,714 INFO L481 AbstractCegarLoop]: Abstraction has 779 states and 1015 transitions. [2020-10-27 08:11:26,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 08:11:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1015 transitions. [2020-10-27 08:11:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 08:11:26,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:11:26,724 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] [2020-10-27 08:11:26,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 08:11:26,725 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:11:26,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:11:26,726 INFO L82 PathProgramCache]: Analyzing trace with hash -706957180, now seen corresponding path program 1 times [2020-10-27 08:11:26,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:11:26,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085174528] [2020-10-27 08:11:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:11:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:26,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:28,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:28,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 08:11:28,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:11:28,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1336 [2020-10-27 08:11:28,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:11:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 08:11:28,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:11:30,249 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:11:30,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:11:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:30,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:30,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:30,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:30,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-10-27 08:11:30,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:11:30,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:11:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:30,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:30,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:30,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:30,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 08:11:30,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:11:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:30,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:11:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:30,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:30,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:30,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:11:30,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:30,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 08:11:30,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 08:11:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:11:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:11:30,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085174528] [2020-10-27 08:11:30,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:11:30,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 08:11:30,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734821030] [2020-10-27 08:11:30,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 08:11:30,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:11:30,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 08:11:30,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:11:30,957 INFO L87 Difference]: Start difference. First operand 779 states and 1015 transitions. Second operand 7 states. [2020-10-27 08:11:35,062 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 549 [2020-10-27 08:11:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:11:54,932 INFO L93 Difference]: Finished difference Result 1641 states and 2177 transitions. [2020-10-27 08:11:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:11:54,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-27 08:11:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:11:54,944 INFO L225 Difference]: With dead ends: 1641 [2020-10-27 08:11:54,945 INFO L226 Difference]: Without dead ends: 873 [2020-10-27 08:11:54,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:11:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-10-27 08:11:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 779. [2020-10-27 08:11:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-10-27 08:11:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1014 transitions. [2020-10-27 08:11:55,279 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1014 transitions. Word has length 32 [2020-10-27 08:11:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:11:55,279 INFO L481 AbstractCegarLoop]: Abstraction has 779 states and 1014 transitions. [2020-10-27 08:11:55,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 08:11:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1014 transitions. [2020-10-27 08:11:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 08:11:55,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:11:55,282 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] [2020-10-27 08:11:55,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 08:11:55,282 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:11:55,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:11:55,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1403491450, now seen corresponding path program 1 times [2020-10-27 08:11:55,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:11:55,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236683578] [2020-10-27 08:11:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:11:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:55,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:55,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:55,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:58,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:58,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 08:11:58,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:11:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3392 [2020-10-27 08:11:58,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:11:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 08:11:58,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:12:00,801 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:12:00,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:00,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:00,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:00,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:00,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-27 08:12:00,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:01,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:01,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:01,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:01,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:12:01,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:01,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 08:12:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:01,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:01,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:01,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:01,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:12:01,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:12:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 08:12:01,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 08:12:01,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:01,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:01,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:01,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:01,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:01,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:01,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:01,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:12:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:01,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:01,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:01,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236683578] [2020-10-27 08:12:01,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:01,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 08:12:01,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276181887] [2020-10-27 08:12:01,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 08:12:01,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:01,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 08:12:01,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 08:12:01,125 INFO L87 Difference]: Start difference. First operand 779 states and 1014 transitions. Second operand 5 states. [2020-10-27 08:12:04,878 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 549 [2020-10-27 08:12:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:17,555 INFO L93 Difference]: Finished difference Result 830 states and 1089 transitions. [2020-10-27 08:12:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 08:12:17,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-10-27 08:12:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:17,563 INFO L225 Difference]: With dead ends: 830 [2020-10-27 08:12:17,563 INFO L226 Difference]: Without dead ends: 825 [2020-10-27 08:12:17,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:12:17,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-27 08:12:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 778. [2020-10-27 08:12:17,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-27 08:12:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1012 transitions. [2020-10-27 08:12:17,925 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1012 transitions. Word has length 38 [2020-10-27 08:12:17,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:17,926 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1012 transitions. [2020-10-27 08:12:17,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 08:12:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1012 transitions. [2020-10-27 08:12:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 08:12:17,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:17,930 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] [2020-10-27 08:12:17,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 08:12:17,930 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:17,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:17,931 INFO L82 PathProgramCache]: Analyzing trace with hash -66803020, now seen corresponding path program 1 times [2020-10-27 08:12:17,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:17,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034025705] [2020-10-27 08:12:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:18,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:18,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:18,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:21,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:21,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 08:12:21,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:12:21,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3181 [2020-10-27 08:12:21,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:12:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 08:12:21,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:23,368 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:12:23,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:23,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:23,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:23,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:23,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:23,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 08:12:23,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:23,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:23,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:23,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:12:23,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:23,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 08:12:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:23,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:23,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:23,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:23,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:12:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:12:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 08:12:23,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 08:12:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:23,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:23,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:23,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:23,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:23,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:23,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:12:23,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:23,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:12:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:23,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:23,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:23,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:23,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:23,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034025705] [2020-10-27 08:12:23,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:23,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 08:12:23,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785436808] [2020-10-27 08:12:23,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 08:12:23,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:23,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 08:12:23,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 08:12:23,669 INFO L87 Difference]: Start difference. First operand 778 states and 1012 transitions. Second operand 5 states. [2020-10-27 08:12:26,593 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 549 [2020-10-27 08:12:39,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:39,728 INFO L93 Difference]: Finished difference Result 829 states and 1087 transitions. [2020-10-27 08:12:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 08:12:39,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-27 08:12:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:39,737 INFO L225 Difference]: With dead ends: 829 [2020-10-27 08:12:39,737 INFO L226 Difference]: Without dead ends: 824 [2020-10-27 08:12:39,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:12:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-27 08:12:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 777. [2020-10-27 08:12:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-10-27 08:12:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1010 transitions. [2020-10-27 08:12:40,020 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1010 transitions. Word has length 39 [2020-10-27 08:12:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:40,021 INFO L481 AbstractCegarLoop]: Abstraction has 777 states and 1010 transitions. [2020-10-27 08:12:40,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 08:12:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1010 transitions. [2020-10-27 08:12:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 08:12:40,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:40,022 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] [2020-10-27 08:12:40,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 08:12:40,023 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:40,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:40,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1603385853, now seen corresponding path program 1 times [2020-10-27 08:12:40,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:40,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389239034] [2020-10-27 08:12:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:40,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:40,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 08:12:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:12:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2852 [2020-10-27 08:12:42,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:12:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 08:12:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:45,008 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:12:45,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:45,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:45,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:45,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-27 08:12:45,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:45,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:45,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:45,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:45,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:12:45,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 08:12:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:45,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:45,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:45,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:12:45,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:12:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:12:45,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 08:12:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:45,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:45,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:45,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:12:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:45,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:45,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:45,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:45,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:45,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:45,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:45,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:45,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:45,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:45,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:45,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389239034] [2020-10-27 08:12:45,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:45,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 08:12:45,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380824950] [2020-10-27 08:12:45,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 08:12:45,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:45,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 08:12:45,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 08:12:45,274 INFO L87 Difference]: Start difference. First operand 777 states and 1010 transitions. Second operand 5 states. [2020-10-27 08:12:48,171 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 549 [2020-10-27 08:13:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:13:02,014 INFO L93 Difference]: Finished difference Result 828 states and 1085 transitions. [2020-10-27 08:13:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 08:13:02,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-10-27 08:13:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:13:02,021 INFO L225 Difference]: With dead ends: 828 [2020-10-27 08:13:02,022 INFO L226 Difference]: Without dead ends: 795 [2020-10-27 08:13:02,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:13:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-10-27 08:13:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 748. [2020-10-27 08:13:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-27 08:13:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 974 transitions. [2020-10-27 08:13:02,257 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 974 transitions. Word has length 40 [2020-10-27 08:13:02,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:13:02,257 INFO L481 AbstractCegarLoop]: Abstraction has 748 states and 974 transitions. [2020-10-27 08:13:02,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 08:13:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 974 transitions. [2020-10-27 08:13:02,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 08:13:02,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:13:02,259 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] [2020-10-27 08:13:02,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 08:13:02,259 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:13:02,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:13:02,260 INFO L82 PathProgramCache]: Analyzing trace with hash -594375935, now seen corresponding path program 1 times [2020-10-27 08:13:02,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:13:02,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661380420] [2020-10-27 08:13:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:13:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:02,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:02,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:03,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:07,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:07,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 08:13:07,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:13:07,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4886 [2020-10-27 08:13:07,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 08:13:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 08:13:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:09,422 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:13:09,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:13:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:09,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:09,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:09,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:09,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:09,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 08:13:09,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:09,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:13:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:09,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:09,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:09,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:09,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:09,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:13:09,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:09,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:09,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 08:13:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:09,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:09,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:09,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:13:09,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:09,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 08:13:09,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:09,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:09,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:13:09,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:09,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:09,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:09,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:09,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:09,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:13:09,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:09,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:13:09,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:09,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:09,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:09,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:09,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:13:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:09,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:09,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:09,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:09,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:13:09,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:09,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:09,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:13:09,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661380420] [2020-10-27 08:13:09,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:13:09,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 08:13:09,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830870340] [2020-10-27 08:13:09,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 08:13:09,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:13:09,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 08:13:09,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 08:13:09,759 INFO L87 Difference]: Start difference. First operand 748 states and 974 transitions. Second operand 6 states. [2020-10-27 08:13:12,916 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 549 [2020-10-27 08:13:37,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:13:37,743 INFO L93 Difference]: Finished difference Result 1977 states and 2609 transitions. [2020-10-27 08:13:37,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:13:37,745 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-27 08:13:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:13:37,753 INFO L225 Difference]: With dead ends: 1977 [2020-10-27 08:13:37,753 INFO L226 Difference]: Without dead ends: 1240 [2020-10-27 08:13:37,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-27 08:13:37,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2020-10-27 08:13:38,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1158. [2020-10-27 08:13:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-10-27 08:13:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1515 transitions. [2020-10-27 08:13:38,178 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1515 transitions. Word has length 46 [2020-10-27 08:13:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:13:38,178 INFO L481 AbstractCegarLoop]: Abstraction has 1158 states and 1515 transitions. [2020-10-27 08:13:38,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 08:13:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1515 transitions. [2020-10-27 08:13:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 08:13:38,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:13:38,181 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:13:38,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 08:13:38,181 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:13:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:13:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash 288826470, now seen corresponding path program 1 times [2020-10-27 08:13:38,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:13:38,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228446126] [2020-10-27 08:13:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:13:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:38,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:38,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:38,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:39,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:39,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:43,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:43,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 08:13:43,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 08:13:43,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-27 08:13:43,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 08:13:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:45,502 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:13:45,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:13:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:45,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:45,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:45,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:45,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:13:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:45,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:45,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:45,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:45,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:45,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:45,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:45,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:45,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:45,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:45,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:13:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:45,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:45,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 08:13:45,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 08:13:45,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 08:13:45,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 08:13:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:45,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:45,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:13:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:45,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:45,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:45,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:45,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:13:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:45,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:45,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:13:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:46,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 08:13:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:13:46,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:13:46,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:13:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:46,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:46,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:46,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:46,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:13:46,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:46,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:46,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:13:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:46,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:46,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:46,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:46,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:46,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:46,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:13:46,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228446126] [2020-10-27 08:13:46,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:13:46,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 08:13:46,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836587365] [2020-10-27 08:13:46,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 08:13:46,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:13:46,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 08:13:46,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:13:46,080 INFO L87 Difference]: Start difference. First operand 1158 states and 1515 transitions. Second operand 10 states. [2020-10-27 08:13:50,740 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 550 [2020-10-27 08:14:12,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:14:12,789 INFO L93 Difference]: Finished difference Result 2468 states and 3274 transitions. [2020-10-27 08:14:12,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 08:14:12,790 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2020-10-27 08:14:12,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:14:12,797 INFO L225 Difference]: With dead ends: 2468 [2020-10-27 08:14:12,797 INFO L226 Difference]: Without dead ends: 1321 [2020-10-27 08:14:12,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-27 08:14:12,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2020-10-27 08:14:13,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1192. [2020-10-27 08:14:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-10-27 08:14:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1567 transitions. [2020-10-27 08:14:13,232 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1567 transitions. Word has length 75 [2020-10-27 08:14:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:14:13,232 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 1567 transitions. [2020-10-27 08:14:13,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 08:14:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1567 transitions. [2020-10-27 08:14:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 08:14:13,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:14:13,235 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:14:13,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 08:14:13,235 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:14:13,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:14:13,236 INFO L82 PathProgramCache]: Analyzing trace with hash 847002498, now seen corresponding path program 1 times [2020-10-27 08:14:13,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:14:13,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959392855] [2020-10-27 08:14:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:14:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:13,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:13,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:13,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:13,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:14,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:18,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:18,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 08:14:18,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 08:14:18,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-27 08:14:18,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:18,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:14:18,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 08:14:18,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 08:14:18,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:20,562 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 547 [2020-10-27 08:14:20,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:14:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:20,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:20,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:20,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:14:20,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:20,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 08:14:20,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:20,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:20,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:14:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:20,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:20,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:14:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:20,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:20,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:20,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:20,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:20,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 08:14:20,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:14:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-27 08:14:20,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 08:14:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 08:14:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:14:20,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:21,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:14:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:21,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 08:14:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:21,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 08:14:21,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:14:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 08:14:21,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:14:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 08:14:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:14:21,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:21,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 08:14:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:21,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:14:21,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:14:21,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:14:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:21,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:21,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:14:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:21,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:21,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:14:21,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:14:21,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:21,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:14:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:21,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:21,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:21,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:14:21,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:14:21,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:21,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:14:21,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959392855] [2020-10-27 08:14:21,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 08:14:21,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 08:14:21,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336080013] [2020-10-27 08:14:21,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 08:14:21,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:14:21,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 08:14:21,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 08:14:21,417 INFO L87 Difference]: Start difference. First operand 1192 states and 1567 transitions. Second operand 11 states.