./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:45:12,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:45:12,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:45:12,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:45:12,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:45:12,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:45:12,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:45:12,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:45:12,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:45:12,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:45:12,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:45:12,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:45:12,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:45:12,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:45:12,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:45:12,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:45:12,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:45:12,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:45:12,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:45:12,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:45:12,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:45:12,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:45:12,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:45:12,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:45:12,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:45:12,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:45:12,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:45:12,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:45:12,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:45:12,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:45:12,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:45:12,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:45:12,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:45:12,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:45:12,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:45:12,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:45:12,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:45:12,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:45:12,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:45:12,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:45:12,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:45:12,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:45:12,991 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:45:12,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:45:12,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:45:12,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:45:12,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:45:12,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:45:12,993 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:45:12,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:45:12,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:45:12,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:45:12,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:45:12,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:45:12,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:45:12,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:45:12,996 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:45:12,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:45:12,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:45:12,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:45:12,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:45:12,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:45:12,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:45:12,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:45:12,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:45:12,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:45:12,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:45:12,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:45:12,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:45:12,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:45:12,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:45:12,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 [2021-11-06 17:45:13,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:45:13,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:45:13,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:45:13,248 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:45:13,249 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:45:13,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-06 17:45:13,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef6666db7/897227b732554b6ab3b66d173eb4841e/FLAGf2f3e602b [2021-11-06 17:45:14,178 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:45:14,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-06 17:45:14,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef6666db7/897227b732554b6ab3b66d173eb4841e/FLAGf2f3e602b [2021-11-06 17:45:14,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef6666db7/897227b732554b6ab3b66d173eb4841e [2021-11-06 17:45:14,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:45:14,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:45:14,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:45:14,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:45:14,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:45:14,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:45:14" (1/1) ... [2021-11-06 17:45:14,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd1ecda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:14, skipping insertion in model container [2021-11-06 17:45:14,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:45:14" (1/1) ... [2021-11-06 17:45:14,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:45:14,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:45:20,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2021-11-06 17:45:20,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:45:20,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:45:22,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2021-11-06 17:45:22,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:45:22,340 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:45:22,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22 WrapperNode [2021-11-06 17:45:22,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:45:22,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:45:22,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:45:22,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:45:22,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:22,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:24,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:45:24,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:45:24,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:45:24,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:45:24,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:24,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:24,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:24,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:26,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:27,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:27,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:27,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:45:27,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:45:27,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:45:27,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:45:27,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (1/1) ... [2021-11-06 17:45:27,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:45:27,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:45:27,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 17:45:27,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 17:45:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_shutdown [2021-11-06 17:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_shutdown [2021-11-06 17:45:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-06 17:45:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure _ipr_initiate_ioa_reset [2021-11-06 17:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure _ipr_initiate_ioa_reset [2021-11-06 17:45:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_page24_failed [2021-11-06 17:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_page24_failed [2021-11-06 17:45:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa [2021-11-06 17:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa [2021-11-06 17:45:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_dump [2021-11-06 17:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_dump [2021-11-06 17:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_all_resources [2021-11-06 17:45:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_all_resources [2021-11-06 17:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 17:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-06 17:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_failed [2021-11-06 17:45:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_failed [2021-11-06 17:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_done [2021-11-06 17:45:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_done [2021-11-06 17:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_remove [2021-11-06 17:45:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_remove [2021-11-06 17:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_dev_reset [2021-11-06 17:45:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_dev_reset [2021-11-06 17:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_abort [2021-11-06 17:45:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_abort [2021-11-06 17:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_mem [2021-11-06 17:45:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_mem [2021-11-06 17:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-06 17:45:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-06 17:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-06 17:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_bringdown [2021-11-06 17:45:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_bringdown [2021-11-06 17:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:45:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:45:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:45:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 17:45:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 17:45:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_restore_cfg_space [2021-11-06 17:45:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_restore_cfg_space [2021-11-06 17:45:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_request_sense [2021-11-06 17:45:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_request_sense [2021-11-06 17:45:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_timer_done [2021-11-06 17:45:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_timer_done [2021-11-06 17:45:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:45:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:45:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-06 17:45:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-06 17:45:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:45:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:45:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_bus_reset_done [2021-11-06 17:45:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_bus_reset_done [2021-11-06 17:45:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_start [2021-11-06 17:45:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_start [2021-11-06 17:45:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_queuecommand [2021-11-06 17:45:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_queuecommand [2021-11-06 17:45:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_eh_done [2021-11-06 17:45:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_eh_done [2021-11-06 17:45:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_worker_thread [2021-11-06 17:45:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_worker_thread [2021-11-06 17:45:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_fail_all_ops [2021-11-06 17:45:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_fail_all_ops [2021-11-06 17:45:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cancel_hcam_done [2021-11-06 17:45:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cancel_hcam_done [2021-11-06 17:45:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_53 [2021-11-06 17:45:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_53 [2021-11-06 17:45:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:45:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_done [2021-11-06 17:45:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_done [2021-11-06 17:45:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:45:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2021-11-06 17:45:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2021-11-06 17:45:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_reset_work [2021-11-06 17:45:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_reset_work [2021-11-06 17:45:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_ops [2021-11-06 17:45:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_ops [2021-11-06 17:45:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:45:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_cancel_all [2021-11-06 17:45:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_cancel_all [2021-11-06 17:45:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_52 [2021-11-06 17:45:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_52 [2021-11-06 17:45:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_41 [2021-11-06 17:45:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_41 [2021-11-06 17:45:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_remove [2021-11-06 17:45:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_remove [2021-11-06 17:45:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe [2021-11-06 17:45:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe [2021-11-06 17:45:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_reset [2021-11-06 17:45:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_reset [2021-11-06 17:45:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:45:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa_part2 [2021-11-06 17:45:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa_part2 [2021-11-06 17:45:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2021-11-06 17:45:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2021-11-06 17:45:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_host_reset [2021-11-06 17:45:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_host_reset [2021-11-06 17:45:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cmd_failed [2021-11-06 17:45:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cmd_failed [2021-11-06 17:45:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_lock_and_done [2021-11-06 17:45:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_lock_and_done [2021-11-06 17:45:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_error [2021-11-06 17:45:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_error [2021-11-06 17:45:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:45:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:45:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_ioa_job [2021-11-06 17:45:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_ioa_job [2021-11-06 17:45:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_timeout [2021-11-06 17:45:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_timeout [2021-11-06 17:45:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:45:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_oper_timeout [2021-11-06 17:45:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_oper_timeout [2021-11-06 17:48:56,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:48:56,403 INFO L299 CfgBuilder]: Removed 12843 assume(true) statements. [2021-11-06 17:48:56,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:48:56 BoogieIcfgContainer [2021-11-06 17:48:56,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:48:56,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:48:56,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:48:56,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:48:56,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:45:14" (1/3) ... [2021-11-06 17:48:56,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589a5a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:48:56, skipping insertion in model container [2021-11-06 17:48:56,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:22" (2/3) ... [2021-11-06 17:48:56,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589a5a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:48:56, skipping insertion in model container [2021-11-06 17:48:56,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:48:56" (3/3) ... [2021-11-06 17:48:56,422 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-06 17:48:56,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:48:56,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 17:48:56,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:48:56,505 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 17:48:56,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 17:48:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 12659 states, 12422 states have (on average 1.3678956689744002) internal successors, (16992), 12492 states have internal predecessors, (16992), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) [2021-11-06 17:48:56,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-06 17:48:56,688 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:48:56,689 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:48:56,690 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 17:48:56,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:48:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash -497443597, now seen corresponding path program 1 times [2021-11-06 17:48:56,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:48:56,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346617431] [2021-11-06 17:48:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:48:56,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:48:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:48:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:48:58,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:48:58,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346617431] [2021-11-06 17:48:58,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346617431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:48:58,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:48:58,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:48:58,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589601020] [2021-11-06 17:48:58,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:48:58,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:48:58,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:48:58,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:48:58,521 INFO L87 Difference]: Start difference. First operand has 12659 states, 12422 states have (on average 1.3678956689744002) internal successors, (16992), 12492 states have internal predecessors, (16992), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) Second operand has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:48:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:48:58,980 INFO L93 Difference]: Finished difference Result 25314 states and 34854 transitions. [2021-11-06 17:48:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:48:58,981 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-11-06 17:48:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:48:59,086 INFO L225 Difference]: With dead ends: 25314 [2021-11-06 17:48:59,086 INFO L226 Difference]: Without dead ends: 12586 [2021-11-06 17:48:59,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:48:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12586 states. [2021-11-06 17:48:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12586 to 12586. [2021-11-06 17:48:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12586 states, 12350 states have (on average 1.3548178137651823) internal successors, (16732), 12419 states have internal predecessors, (16732), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) [2021-11-06 17:48:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12586 states to 12586 states and 17082 transitions. [2021-11-06 17:48:59,660 INFO L78 Accepts]: Start accepts. Automaton has 12586 states and 17082 transitions. Word has length 280 [2021-11-06 17:48:59,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:48:59,662 INFO L470 AbstractCegarLoop]: Abstraction has 12586 states and 17082 transitions. [2021-11-06 17:48:59,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:48:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 12586 states and 17082 transitions. [2021-11-06 17:48:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-06 17:48:59,672 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:48:59,672 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:48:59,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:48:59,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 17:48:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:48:59,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1603454789, now seen corresponding path program 1 times [2021-11-06 17:48:59,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:48:59,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594278294] [2021-11-06 17:48:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:48:59,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:49:00,654 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 17:49:00,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479391956] [2021-11-06 17:49:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:49:00,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:49:00,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:49:00,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:49:00,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 17:49:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:49:08,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 14123 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 17:49:08,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:49:09,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:49:09,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:49:09,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594278294] [2021-11-06 17:49:09,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 17:49:09,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479391956] [2021-11-06 17:49:09,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479391956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:49:09,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:49:09,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:49:09,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575913666] [2021-11-06 17:49:09,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:49:09,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:49:09,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:49:09,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:09,320 INFO L87 Difference]: Start difference. First operand 12586 states and 17082 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:49:10,247 INFO L93 Difference]: Finished difference Result 37062 states and 50471 transitions. [2021-11-06 17:49:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:49:10,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-11-06 17:49:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:49:10,412 INFO L225 Difference]: With dead ends: 37062 [2021-11-06 17:49:10,413 INFO L226 Difference]: Without dead ends: 24737 [2021-11-06 17:49:10,486 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24737 states. [2021-11-06 17:49:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24737 to 24657. [2021-11-06 17:49:11,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24657 states, 24199 states have (on average 1.3596429604529112) internal successors, (32902), 24325 states have internal predecessors, (32902), 349 states have call successors, (349), 96 states have call predecessors, (349), 96 states have return successors, (349), 315 states have call predecessors, (349), 349 states have call successors, (349) [2021-11-06 17:49:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24657 states to 24657 states and 33600 transitions. [2021-11-06 17:49:11,202 INFO L78 Accepts]: Start accepts. Automaton has 24657 states and 33600 transitions. Word has length 280 [2021-11-06 17:49:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:49:11,205 INFO L470 AbstractCegarLoop]: Abstraction has 24657 states and 33600 transitions. [2021-11-06 17:49:11,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24657 states and 33600 transitions. [2021-11-06 17:49:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-06 17:49:11,214 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:49:11,215 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:49:11,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 17:49:11,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:49:11,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 17:49:11,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:49:11,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1381731114, now seen corresponding path program 1 times [2021-11-06 17:49:11,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:49:11,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056807201] [2021-11-06 17:49:11,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:49:11,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:49:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:49:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:49:13,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:49:13,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056807201] [2021-11-06 17:49:13,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056807201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:49:13,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:49:13,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:49:13,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747859423] [2021-11-06 17:49:13,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:49:13,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:49:13,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:49:13,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:13,062 INFO L87 Difference]: Start difference. First operand 24657 states and 33600 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:14,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:49:14,636 INFO L93 Difference]: Finished difference Result 73129 states and 99801 transitions. [2021-11-06 17:49:14,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:49:14,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2021-11-06 17:49:14,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:49:14,853 INFO L225 Difference]: With dead ends: 73129 [2021-11-06 17:49:14,854 INFO L226 Difference]: Without dead ends: 48733 [2021-11-06 17:49:14,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:15,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48733 states. [2021-11-06 17:49:15,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48733 to 48713. [2021-11-06 17:49:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48713 states, 47816 states have (on average 1.3611970888405556) internal successors, (65087), 48056 states have internal predecessors, (65087), 692 states have call successors, (692), 192 states have call predecessors, (692), 192 states have return successors, (692), 624 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-06 17:49:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48713 states to 48713 states and 66471 transitions. [2021-11-06 17:49:16,175 INFO L78 Accepts]: Start accepts. Automaton has 48713 states and 66471 transitions. Word has length 296 [2021-11-06 17:49:16,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:49:16,176 INFO L470 AbstractCegarLoop]: Abstraction has 48713 states and 66471 transitions. [2021-11-06 17:49:16,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:16,176 INFO L276 IsEmpty]: Start isEmpty. Operand 48713 states and 66471 transitions. [2021-11-06 17:49:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-06 17:49:16,186 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:49:16,186 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:49:16,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:49:16,187 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 17:49:16,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:49:16,188 INFO L85 PathProgramCache]: Analyzing trace with hash -420074503, now seen corresponding path program 1 times [2021-11-06 17:49:16,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:49:16,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685948674] [2021-11-06 17:49:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:49:16,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:49:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:49:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:49:17,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:49:17,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685948674] [2021-11-06 17:49:17,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685948674] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:49:17,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:49:17,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:49:17,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2341230] [2021-11-06 17:49:17,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:49:17,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:49:17,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:49:17,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:17,799 INFO L87 Difference]: Start difference. First operand 48713 states and 66471 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:49:20,118 INFO L93 Difference]: Finished difference Result 144555 states and 198716 transitions. [2021-11-06 17:49:20,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:49:20,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 301 [2021-11-06 17:49:20,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:49:20,649 INFO L225 Difference]: With dead ends: 144555 [2021-11-06 17:49:20,649 INFO L226 Difference]: Without dead ends: 96103 [2021-11-06 17:49:20,885 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96103 states. [2021-11-06 17:49:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96103 to 96011. [2021-11-06 17:49:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96011 states, 94266 states have (on average 1.3618802113169117) internal successors, (128379), 94718 states have internal predecessors, (128379), 1348 states have call successors, (1348), 380 states have call predecessors, (1348), 384 states have return successors, (2696), 1232 states have call predecessors, (2696), 1348 states have call successors, (2696) [2021-11-06 17:49:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96011 states to 96011 states and 132423 transitions. [2021-11-06 17:49:24,450 INFO L78 Accepts]: Start accepts. Automaton has 96011 states and 132423 transitions. Word has length 301 [2021-11-06 17:49:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:49:24,451 INFO L470 AbstractCegarLoop]: Abstraction has 96011 states and 132423 transitions. [2021-11-06 17:49:24,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 96011 states and 132423 transitions. [2021-11-06 17:49:24,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-06 17:49:24,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:49:24,494 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:49:24,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:49:24,495 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ipr_worker_threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 17:49:24,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:49:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1991802459, now seen corresponding path program 1 times [2021-11-06 17:49:24,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:49:24,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314509868] [2021-11-06 17:49:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:49:24,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:49:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:49:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:49:26,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:49:26,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314509868] [2021-11-06 17:49:26,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314509868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:49:26,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:49:26,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:49:26,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337966017] [2021-11-06 17:49:26,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:49:26,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:49:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:49:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:26,331 INFO L87 Difference]: Start difference. First operand 96011 states and 132423 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:49:28,734 INFO L93 Difference]: Finished difference Result 191769 states and 267268 transitions. [2021-11-06 17:49:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:49:28,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2021-11-06 17:49:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:49:29,231 INFO L225 Difference]: With dead ends: 191769 [2021-11-06 17:49:29,232 INFO L226 Difference]: Without dead ends: 96019 [2021-11-06 17:49:29,783 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96019 states. [2021-11-06 17:49:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96019 to 96011. [2021-11-06 17:49:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96011 states, 94266 states have (on average 1.361625612628095) internal successors, (128355), 94718 states have internal predecessors, (128355), 1348 states have call successors, (1348), 380 states have call predecessors, (1348), 384 states have return successors, (2696), 1232 states have call predecessors, (2696), 1348 states have call successors, (2696) [2021-11-06 17:49:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96011 states to 96011 states and 132399 transitions. [2021-11-06 17:49:32,157 INFO L78 Accepts]: Start accepts. Automaton has 96011 states and 132399 transitions. Word has length 351 [2021-11-06 17:49:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:49:32,158 INFO L470 AbstractCegarLoop]: Abstraction has 96011 states and 132399 transitions. [2021-11-06 17:49:32,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:32,158 INFO L276 IsEmpty]: Start isEmpty. Operand 96011 states and 132399 transitions. [2021-11-06 17:49:32,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-06 17:49:32,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:49:32,547 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:49:32,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:49:32,548 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ipr_worker_threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 17:49:32,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:49:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1975524458, now seen corresponding path program 1 times [2021-11-06 17:49:32,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:49:32,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566773141] [2021-11-06 17:49:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:49:32,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:49:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:49:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:49:34,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:49:34,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566773141] [2021-11-06 17:49:34,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566773141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:49:34,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:49:34,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:49:34,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850543995] [2021-11-06 17:49:34,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:49:34,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:49:34,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:49:34,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:34,230 INFO L87 Difference]: Start difference. First operand 96011 states and 132399 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:49:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:49:37,558 INFO L93 Difference]: Finished difference Result 165927 states and 233377 transitions. [2021-11-06 17:49:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:49:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2021-11-06 17:49:37,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:49:38,561 INFO L225 Difference]: With dead ends: 165927 [2021-11-06 17:49:38,561 INFO L226 Difference]: Without dead ends: 165901 [2021-11-06 17:49:38,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:49:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165901 states.