./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.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 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:54:35,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:54:35,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:54:36,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:54:36,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:54:36,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:54:36,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:54:36,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:54:36,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:54:36,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:54:36,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:54:36,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:54:36,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:54:36,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:54:36,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:54:36,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:54:36,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:54:36,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:54:36,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:54:36,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:54:36,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:54:36,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:54:36,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:54:36,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:54:36,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:54:36,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:54:36,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:54:36,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:54:36,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:54:36,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:54:36,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:54:36,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:54:36,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:54:36,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:54:36,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:54:36,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:54:36,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:54:36,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:54:36,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:54:36,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:54:36,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:54:36,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:54:36,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:54:36,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:54:36,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:54:36,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:54:36,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:54:36,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:54:36,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:54:36,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:54:36,120 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:54:36,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:54:36,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:54:36,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:54:36,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:54:36,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:54:36,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:54:36,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:54:36,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:54:36,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:54:36,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:54:36,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:54:36,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:54:36,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:54:36,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:54:36,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:54:36,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:54:36,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:54:36,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:54:36,124 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:54:36,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:54:36,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:54:36,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:54:36,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c [2021-12-16 03:54:36,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:54:36,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:54:36,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:54:36,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:54:36,364 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:54:36,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2021-12-16 03:54:36,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1e8acf2/339b084e87f34a369b643ec504467bc1/FLAGf9ee0f82b [2021-12-16 03:54:37,085 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:54:37,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2021-12-16 03:54:37,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1e8acf2/339b084e87f34a369b643ec504467bc1/FLAGf9ee0f82b [2021-12-16 03:54:37,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1e8acf2/339b084e87f34a369b643ec504467bc1 [2021-12-16 03:54:37,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:54:37,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:54:37,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:54:37,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:54:37,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:54:37,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:54:37" (1/1) ... [2021-12-16 03:54:37,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bfda25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:37, skipping insertion in model container [2021-12-16 03:54:37,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:54:37" (1/1) ... [2021-12-16 03:54:37,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:54:37,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:54:38,063 WARN L230 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2021-12-16 03:54:38,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:54:38,460 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:54:38,552 WARN L230 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2021-12-16 03:54:38,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:54:38,754 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:54:38,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38 WrapperNode [2021-12-16 03:54:38,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:54:38,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:54:38,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:54:38,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:54:38,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:38,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:38,941 INFO L137 Inliner]: procedures = 222, calls = 1486, calls flagged for inlining = 101, calls inlined = 96, statements flattened = 3995 [2021-12-16 03:54:38,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:54:38,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:54:38,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:54:38,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:54:38,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:38,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:38,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:38,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:39,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:39,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:39,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:39,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:54:39,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:54:39,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:54:39,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:54:39,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (1/1) ... [2021-12-16 03:54:39,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:54:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:54:39,160 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) [2021-12-16 03:54:39,174 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 [2021-12-16 03:54:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-16 03:54:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-16 03:54:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2021-12-16 03:54:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2021-12-16 03:54:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:54:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:54:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 03:54:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 03:54:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-16 03:54:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-16 03:54:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-16 03:54:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-16 03:54:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2021-12-16 03:54:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2021-12-16 03:54:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-16 03:54:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-16 03:54:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:54:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:54:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-16 03:54:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-16 03:54:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-16 03:54:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-16 03:54:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-16 03:54:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-16 03:54:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2021-12-16 03:54:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2021-12-16 03:54:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-16 03:54:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-16 03:54:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:54:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:54:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:54:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:54:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:54:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:54:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 03:54:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 03:54:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-16 03:54:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-16 03:54:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:54:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-16 03:54:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-16 03:54:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-16 03:54:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2021-12-16 03:54:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2021-12-16 03:54:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-16 03:54:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-16 03:54:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2021-12-16 03:54:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2021-12-16 03:54:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:54:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-16 03:54:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-16 03:54:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-16 03:54:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-12-16 03:54:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-12-16 03:54:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_show [2021-12-16 03:54:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_show [2021-12-16 03:54:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-12-16 03:54:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-12-16 03:54:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:54:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:54:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 03:54:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 03:54:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:54:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:54:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-16 03:54:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-16 03:54:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 03:54:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 03:54:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2021-12-16 03:54:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2021-12-16 03:54:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-16 03:54:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-16 03:54:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2021-12-16 03:54:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2021-12-16 03:54:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-16 03:54:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-16 03:54:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:54:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 03:54:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 03:54:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-12-16 03:54:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-12-16 03:54:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:54:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2021-12-16 03:54:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2021-12-16 03:54:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-12-16 03:54:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-12-16 03:54:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:54:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-16 03:54:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-16 03:54:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-12-16 03:54:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-12-16 03:54:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2021-12-16 03:54:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2021-12-16 03:54:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_store [2021-12-16 03:54:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_store [2021-12-16 03:54:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 03:54:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 03:54:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 03:54:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 03:54:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2021-12-16 03:54:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2021-12-16 03:54:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-16 03:54:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-16 03:54:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2021-12-16 03:54:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2021-12-16 03:54:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:54:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:54:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2021-12-16 03:54:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2021-12-16 03:54:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-16 03:54:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-16 03:54:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:54:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-12-16 03:54:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-12-16 03:54:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-16 03:54:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-16 03:54:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2021-12-16 03:54:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2021-12-16 03:54:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2021-12-16 03:54:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2021-12-16 03:54:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:54:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:54:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:54:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2021-12-16 03:54:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2021-12-16 03:54:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-12-16 03:54:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-12-16 03:54:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2021-12-16 03:54:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2021-12-16 03:54:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-16 03:54:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-16 03:54:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:54:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2021-12-16 03:54:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2021-12-16 03:54:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 03:54:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 03:54:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2021-12-16 03:54:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2021-12-16 03:54:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:54:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-16 03:54:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-16 03:54:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:54:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:54:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-12-16 03:54:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-12-16 03:54:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-16 03:54:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-16 03:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-16 03:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-16 03:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2021-12-16 03:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2021-12-16 03:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_irq [2021-12-16 03:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_irq [2021-12-16 03:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-12-16 03:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-12-16 03:54:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-16 03:54:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-16 03:54:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:54:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2021-12-16 03:54:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2021-12-16 03:54:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:54:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:54:39,740 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:54:39,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:54:39,869 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 03:54:40,605 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-16 03:54:41,445 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:54:41,463 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:54:41,464 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:54:41,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:54:41 BoogieIcfgContainer [2021-12-16 03:54:41,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:54:41,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:54:41,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:54:41,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:54:41,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:54:37" (1/3) ... [2021-12-16 03:54:41,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef5e246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:54:41, skipping insertion in model container [2021-12-16 03:54:41,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:54:38" (2/3) ... [2021-12-16 03:54:41,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef5e246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:54:41, skipping insertion in model container [2021-12-16 03:54:41,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:54:41" (3/3) ... [2021-12-16 03:54:41,474 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2021-12-16 03:54:41,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:54:41,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:54:41,521 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:54:41,525 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 [2021-12-16 03:54:41,526 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:54:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2021-12-16 03:54:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-16 03:54:41,577 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:41,578 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:41,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1340860104, now seen corresponding path program 1 times [2021-12-16 03:54:41,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:41,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590780876] [2021-12-16 03:54:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:41,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:54:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:54:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:54:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:54:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:54:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:54:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:54:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:54:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:54:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:54:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:54:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:54:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:54:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:54:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:54:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:54:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:54:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:54:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:54:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:54:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:54:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:54:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:54:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:54:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-12-16 03:54:42,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:42,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590780876] [2021-12-16 03:54:42,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590780876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:42,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:42,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:54:42,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520944729] [2021-12-16 03:54:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:42,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:54:42,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:54:42,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:42,348 INFO L87 Difference]: Start difference. First operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-16 03:54:45,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:54:45,822 INFO L93 Difference]: Finished difference Result 3639 states and 5331 transitions. [2021-12-16 03:54:45,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:54:45,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 174 [2021-12-16 03:54:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:54:45,864 INFO L225 Difference]: With dead ends: 3639 [2021-12-16 03:54:45,865 INFO L226 Difference]: Without dead ends: 2436 [2021-12-16 03:54:45,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 03:54:45,883 INFO L933 BasicCegarLoop]: 1765 mSDtfsCounter, 2413 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 4708 SdHoareTripleChecker+Invalid, 3140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-16 03:54:45,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2586 Valid, 4708 Invalid, 3140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1434 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-16 03:54:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2021-12-16 03:54:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2184. [2021-12-16 03:54:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1552 states have (on average 1.3324742268041236) internal successors, (2068), 1580 states have internal predecessors, (2068), 493 states have call successors, (493), 139 states have call predecessors, (493), 138 states have return successors, (488), 486 states have call predecessors, (488), 488 states have call successors, (488) [2021-12-16 03:54:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3049 transitions. [2021-12-16 03:54:46,048 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3049 transitions. Word has length 174 [2021-12-16 03:54:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:54:46,049 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 3049 transitions. [2021-12-16 03:54:46,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-16 03:54:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3049 transitions. [2021-12-16 03:54:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-16 03:54:46,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:46,059 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:46,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:54:46,060 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:46,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -741605332, now seen corresponding path program 1 times [2021-12-16 03:54:46,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:46,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693073369] [2021-12-16 03:54:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:46,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:54:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:54:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:54:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:54:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:54:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:54:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:54:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:54:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:54:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:54:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:54:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:54:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:54:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:54:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:54:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:54:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:54:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:54:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:54:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:54:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:54:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:54:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:54:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:54:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:54:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-12-16 03:54:46,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:46,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693073369] [2021-12-16 03:54:46,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693073369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:46,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:46,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:54:46,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686830848] [2021-12-16 03:54:46,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:46,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:54:46,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:54:46,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:46,483 INFO L87 Difference]: Start difference. First operand 2184 states and 3049 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:50,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:54:50,014 INFO L93 Difference]: Finished difference Result 6949 states and 10117 transitions. [2021-12-16 03:54:50,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:54:50,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2021-12-16 03:54:50,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:54:50,048 INFO L225 Difference]: With dead ends: 6949 [2021-12-16 03:54:50,048 INFO L226 Difference]: Without dead ends: 4818 [2021-12-16 03:54:50,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 03:54:50,057 INFO L933 BasicCegarLoop]: 1960 mSDtfsCounter, 2449 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 1352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 3197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-16 03:54:50,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2616 Valid, 4974 Invalid, 3197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1352 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-16 03:54:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2021-12-16 03:54:50,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4364. [2021-12-16 03:54:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 3113 states have (on average 1.332155477031802) internal successors, (4147), 3165 states have internal predecessors, (4147), 962 states have call successors, (962), 277 states have call predecessors, (962), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2021-12-16 03:54:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 6138 transitions. [2021-12-16 03:54:50,230 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 6138 transitions. Word has length 184 [2021-12-16 03:54:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:54:50,231 INFO L470 AbstractCegarLoop]: Abstraction has 4364 states and 6138 transitions. [2021-12-16 03:54:50,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 6138 transitions. [2021-12-16 03:54:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-16 03:54:50,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:50,234 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:50,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:54:50,234 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:50,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1515497706, now seen corresponding path program 1 times [2021-12-16 03:54:50,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:50,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652365397] [2021-12-16 03:54:50,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:50,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:54:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:54:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:54:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:54:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:54:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:54:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:54:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:54:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:54:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:54:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:54:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:54:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:54:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:54:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:54:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:54:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:54:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:54:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:54:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:54:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:54:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:54:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:54:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:54:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:54:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-12-16 03:54:50,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:50,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652365397] [2021-12-16 03:54:50,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652365397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:50,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:50,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:54:50,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075669104] [2021-12-16 03:54:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:50,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:54:50,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:50,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:54:50,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:50,593 INFO L87 Difference]: Start difference. First operand 4364 states and 6138 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:54:52,658 INFO L93 Difference]: Finished difference Result 4810 states and 7042 transitions. [2021-12-16 03:54:52,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:54:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 185 [2021-12-16 03:54:52,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:54:52,679 INFO L225 Difference]: With dead ends: 4810 [2021-12-16 03:54:52,680 INFO L226 Difference]: Without dead ends: 4807 [2021-12-16 03:54:52,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:54:52,688 INFO L933 BasicCegarLoop]: 1516 mSDtfsCounter, 1928 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-16 03:54:52,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2104 Valid, 2967 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [797 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-16 03:54:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2021-12-16 03:54:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4363. [2021-12-16 03:54:52,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3113 states have (on average 1.3318342434950208) internal successors, (4146), 3164 states have internal predecessors, (4146), 961 states have call successors, (961), 277 states have call predecessors, (961), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2021-12-16 03:54:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 6136 transitions. [2021-12-16 03:54:52,867 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 6136 transitions. Word has length 185 [2021-12-16 03:54:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:54:52,868 INFO L470 AbstractCegarLoop]: Abstraction has 4363 states and 6136 transitions. [2021-12-16 03:54:52,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 6136 transitions. [2021-12-16 03:54:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 03:54:52,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:52,871 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:52,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:54:52,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:52,872 INFO L85 PathProgramCache]: Analyzing trace with hash 263647343, now seen corresponding path program 1 times [2021-12-16 03:54:52,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:52,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630307088] [2021-12-16 03:54:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:52,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:54:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:54:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:54:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:54:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:54:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:54:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:54:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:54:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:54:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:54:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:54:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:54:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:54:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:54:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:54:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:54:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:54:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:54:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:54:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:54:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:54:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:54:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:54:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:54:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:54:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-12-16 03:54:53,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:53,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630307088] [2021-12-16 03:54:53,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630307088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:53,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:53,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:54:53,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828037411] [2021-12-16 03:54:53,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:53,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:54:53,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:53,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:54:53,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:53,186 INFO L87 Difference]: Start difference. First operand 4363 states and 6136 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:54:55,169 INFO L93 Difference]: Finished difference Result 4809 states and 7040 transitions. [2021-12-16 03:54:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:54:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 186 [2021-12-16 03:54:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:54:55,191 INFO L225 Difference]: With dead ends: 4809 [2021-12-16 03:54:55,192 INFO L226 Difference]: Without dead ends: 4806 [2021-12-16 03:54:55,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:54:55,195 INFO L933 BasicCegarLoop]: 1501 mSDtfsCounter, 1932 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-16 03:54:55,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2110 Valid, 2950 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-16 03:54:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2021-12-16 03:54:55,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 4362. [2021-12-16 03:54:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3113 states have (on average 1.3315130099582397) internal successors, (4145), 3163 states have internal predecessors, (4145), 960 states have call successors, (960), 277 states have call predecessors, (960), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2021-12-16 03:54:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6134 transitions. [2021-12-16 03:54:55,327 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6134 transitions. Word has length 186 [2021-12-16 03:54:55,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:54:55,331 INFO L470 AbstractCegarLoop]: Abstraction has 4362 states and 6134 transitions. [2021-12-16 03:54:55,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6134 transitions. [2021-12-16 03:54:55,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-16 03:54:55,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:55,333 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:55,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:54:55,334 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:55,334 INFO L85 PathProgramCache]: Analyzing trace with hash -417426119, now seen corresponding path program 1 times [2021-12-16 03:54:55,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:55,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311575772] [2021-12-16 03:54:55,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:55,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:54:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:54:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:54:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:54:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:54:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:54:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:54:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:54:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:54:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:54:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:54:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:54:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:54:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:54:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:54:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:54:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:54:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:54:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:54:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:54:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:54:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:54:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:54:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:54:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:54:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-12-16 03:54:55,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:55,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311575772] [2021-12-16 03:54:55,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311575772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:55,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:55,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:54:55,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703931294] [2021-12-16 03:54:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:55,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:54:55,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:55,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:54:55,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:55,637 INFO L87 Difference]: Start difference. First operand 4362 states and 6134 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:57,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:54:57,624 INFO L93 Difference]: Finished difference Result 4808 states and 7038 transitions. [2021-12-16 03:54:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:54:57,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 187 [2021-12-16 03:54:57,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:54:57,641 INFO L225 Difference]: With dead ends: 4808 [2021-12-16 03:54:57,641 INFO L226 Difference]: Without dead ends: 4805 [2021-12-16 03:54:57,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:54:57,643 INFO L933 BasicCegarLoop]: 1511 mSDtfsCounter, 1922 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-16 03:54:57,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2099 Valid, 2958 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-16 03:54:57,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2021-12-16 03:54:57,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4361. [2021-12-16 03:54:57,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4361 states, 3113 states have (on average 1.3311917764214585) internal successors, (4144), 3162 states have internal predecessors, (4144), 959 states have call successors, (959), 277 states have call predecessors, (959), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2021-12-16 03:54:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4361 states to 4361 states and 6132 transitions. [2021-12-16 03:54:57,782 INFO L78 Accepts]: Start accepts. Automaton has 4361 states and 6132 transitions. Word has length 187 [2021-12-16 03:54:57,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:54:57,783 INFO L470 AbstractCegarLoop]: Abstraction has 4361 states and 6132 transitions. [2021-12-16 03:54:57,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:54:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4361 states and 6132 transitions. [2021-12-16 03:54:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-16 03:54:57,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:57,791 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:57,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:54:57,791 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:57,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:57,791 INFO L85 PathProgramCache]: Analyzing trace with hash -55862094, now seen corresponding path program 1 times [2021-12-16 03:54:57,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:57,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23423304] [2021-12-16 03:54:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:57,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:54:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:54:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:54:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:54:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:54:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:54:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:54:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:54:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:54:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:54:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:54:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:54:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:54:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:54:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:54:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:54:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:54:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:54:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:54:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:54:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:54:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:54:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:54:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:54:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:54:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-12-16 03:54:58,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:58,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23423304] [2021-12-16 03:54:58,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23423304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:58,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:58,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:54:58,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106115053] [2021-12-16 03:54:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:58,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:54:58,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:58,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:54:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:58,065 INFO L87 Difference]: Start difference. First operand 4361 states and 6132 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:55:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:00,025 INFO L93 Difference]: Finished difference Result 4807 states and 7036 transitions. [2021-12-16 03:55:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:55:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 188 [2021-12-16 03:55:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:00,047 INFO L225 Difference]: With dead ends: 4807 [2021-12-16 03:55:00,051 INFO L226 Difference]: Without dead ends: 4795 [2021-12-16 03:55:00,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:55:00,056 INFO L933 BasicCegarLoop]: 1513 mSDtfsCounter, 1916 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:00,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2091 Valid, 2960 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-16 03:55:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2021-12-16 03:55:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4351. [2021-12-16 03:55:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3104 states have (on average 1.3308634020618557) internal successors, (4131), 3152 states have internal predecessors, (4131), 958 states have call successors, (958), 277 states have call predecessors, (958), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2021-12-16 03:55:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6118 transitions. [2021-12-16 03:55:00,211 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6118 transitions. Word has length 188 [2021-12-16 03:55:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:00,211 INFO L470 AbstractCegarLoop]: Abstraction has 4351 states and 6118 transitions. [2021-12-16 03:55:00,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-16 03:55:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6118 transitions. [2021-12-16 03:55:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-12-16 03:55:00,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:00,219 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:00,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:55:00,220 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:00,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash 734121489, now seen corresponding path program 1 times [2021-12-16 03:55:00,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:00,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718595022] [2021-12-16 03:55:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:00,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-16 03:55:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-16 03:55:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-16 03:55:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-16 03:55:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-16 03:55:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-16 03:55:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-16 03:55:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 03:55:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-16 03:55:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2021-12-16 03:55:00,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:00,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718595022] [2021-12-16 03:55:00,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718595022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:00,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:55:00,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 03:55:00,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806517377] [2021-12-16 03:55:00,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:00,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 03:55:00,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 03:55:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-16 03:55:00,569 INFO L87 Difference]: Start difference. First operand 4351 states and 6118 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-16 03:55:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:05,069 INFO L93 Difference]: Finished difference Result 11248 states and 16329 transitions. [2021-12-16 03:55:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 03:55:05,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 305 [2021-12-16 03:55:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:05,092 INFO L225 Difference]: With dead ends: 11248 [2021-12-16 03:55:05,093 INFO L226 Difference]: Without dead ends: 6950 [2021-12-16 03:55:05,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-16 03:55:05,104 INFO L933 BasicCegarLoop]: 1528 mSDtfsCounter, 2485 mSDsluCounter, 4765 mSDsCounter, 0 mSdLazyCounter, 4130 mSolverCounterSat, 2110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2636 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 6240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2110 IncrementalHoareTripleChecker+Valid, 4130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:05,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2636 Valid, 6293 Invalid, 6240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2110 Valid, 4130 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 03:55:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6950 states. [2021-12-16 03:55:05,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6950 to 6148. [2021-12-16 03:55:05,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 4466 states have (on average 1.3463949843260188) internal successors, (6013), 4522 states have internal predecessors, (6013), 1279 states have call successors, (1279), 375 states have call predecessors, (1279), 402 states have return successors, (1410), 1292 states have call predecessors, (1410), 1278 states have call successors, (1410) [2021-12-16 03:55:05,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 8702 transitions. [2021-12-16 03:55:05,288 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 8702 transitions. Word has length 305 [2021-12-16 03:55:05,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:05,288 INFO L470 AbstractCegarLoop]: Abstraction has 6148 states and 8702 transitions. [2021-12-16 03:55:05,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-16 03:55:05,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 8702 transitions. [2021-12-16 03:55:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-12-16 03:55:05,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:05,301 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:05,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 03:55:05,301 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1812933429, now seen corresponding path program 1 times [2021-12-16 03:55:05,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:05,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508568378] [2021-12-16 03:55:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:05,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-16 03:55:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-16 03:55:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-16 03:55:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 03:55:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-16 03:55:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-16 03:55:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-16 03:55:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-16 03:55:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-16 03:55:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-16 03:55:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2021-12-16 03:55:05,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:05,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508568378] [2021-12-16 03:55:05,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508568378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:05,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:55:05,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 03:55:05,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538932856] [2021-12-16 03:55:05,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:05,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 03:55:05,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 03:55:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-16 03:55:05,723 INFO L87 Difference]: Start difference. First operand 6148 states and 8702 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-16 03:55:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:09,632 INFO L93 Difference]: Finished difference Result 10119 states and 14590 transitions. [2021-12-16 03:55:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 03:55:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 332 [2021-12-16 03:55:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:09,644 INFO L225 Difference]: With dead ends: 10119 [2021-12-16 03:55:09,644 INFO L226 Difference]: Without dead ends: 4034 [2021-12-16 03:55:09,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-12-16 03:55:09,658 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 1691 mSDsluCounter, 4823 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 1807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 5428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1807 IncrementalHoareTripleChecker+Valid, 3621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:09,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1760 Valid, 6286 Invalid, 5428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1807 Valid, 3621 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-16 03:55:09,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2021-12-16 03:55:09,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3596. [2021-12-16 03:55:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 2620 states have (on average 1.3458015267175572) internal successors, (3526), 2648 states have internal predecessors, (3526), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2021-12-16 03:55:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 5081 transitions. [2021-12-16 03:55:09,763 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 5081 transitions. Word has length 332 [2021-12-16 03:55:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:09,763 INFO L470 AbstractCegarLoop]: Abstraction has 3596 states and 5081 transitions. [2021-12-16 03:55:09,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-16 03:55:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 5081 transitions. [2021-12-16 03:55:09,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-12-16 03:55:09,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:09,774 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:09,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:55:09,774 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:09,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash -441968209, now seen corresponding path program 1 times [2021-12-16 03:55:09,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:09,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921173298] [2021-12-16 03:55:09,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:09,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:55:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:55:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 03:55:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 03:55:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-16 03:55:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 03:55:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 03:55:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 03:55:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 03:55:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 03:55:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 03:55:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-16 03:55:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-16 03:55:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-16 03:55:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-16 03:55:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-16 03:55:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-16 03:55:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-16 03:55:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-16 03:55:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2705 trivial. 0 not checked. [2021-12-16 03:55:10,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:10,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921173298] [2021-12-16 03:55:10,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921173298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:10,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:55:10,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 03:55:10,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43666948] [2021-12-16 03:55:10,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:10,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 03:55:10,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:10,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 03:55:10,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-16 03:55:10,255 INFO L87 Difference]: Start difference. First operand 3596 states and 5081 transitions. Second operand has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2021-12-16 03:55:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:13,968 INFO L93 Difference]: Finished difference Result 8752 states and 13117 transitions. [2021-12-16 03:55:13,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 03:55:13,968 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 400 [2021-12-16 03:55:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:13,988 INFO L225 Difference]: With dead ends: 8752 [2021-12-16 03:55:13,988 INFO L226 Difference]: Without dead ends: 5645 [2021-12-16 03:55:14,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2021-12-16 03:55:14,001 INFO L933 BasicCegarLoop]: 1895 mSDtfsCounter, 2353 mSDsluCounter, 5317 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 1707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 4755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1707 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:14,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2499 Valid, 7212 Invalid, 4755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1707 Valid, 3048 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-16 03:55:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2021-12-16 03:55:14,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 3600. [2021-12-16 03:55:14,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 2624 states have (on average 1.3452743902439024) internal successors, (3530), 2652 states have internal predecessors, (3530), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2021-12-16 03:55:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5085 transitions. [2021-12-16 03:55:14,168 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5085 transitions. Word has length 400 [2021-12-16 03:55:14,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:14,168 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 5085 transitions. [2021-12-16 03:55:14,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2021-12-16 03:55:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5085 transitions. [2021-12-16 03:55:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-12-16 03:55:14,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:14,179 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:14,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 03:55:14,179 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash 218678581, now seen corresponding path program 1 times [2021-12-16 03:55:14,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:14,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59952522] [2021-12-16 03:55:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:14,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:55:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:55:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 03:55:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 03:55:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-16 03:55:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 03:55:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 03:55:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 03:55:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 03:55:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 03:55:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 03:55:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-16 03:55:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-16 03:55:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-16 03:55:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-16 03:55:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-16 03:55:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-16 03:55:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-16 03:55:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-16 03:55:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-12-16 03:55:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-16 03:55:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-16 03:55:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-12-16 03:55:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-16 03:55:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-12-16 03:55:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-12-16 03:55:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2021-12-16 03:55:14,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:14,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59952522] [2021-12-16 03:55:14,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59952522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:14,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:55:14,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 03:55:14,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227612513] [2021-12-16 03:55:14,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:14,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 03:55:14,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 03:55:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-16 03:55:14,746 INFO L87 Difference]: Start difference. First operand 3600 states and 5085 transitions. Second operand has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-16 03:55:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:19,489 INFO L93 Difference]: Finished difference Result 9663 states and 14650 transitions. [2021-12-16 03:55:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 03:55:19,489 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 458 [2021-12-16 03:55:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:19,512 INFO L225 Difference]: With dead ends: 9663 [2021-12-16 03:55:19,513 INFO L226 Difference]: Without dead ends: 6552 [2021-12-16 03:55:19,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2021-12-16 03:55:19,525 INFO L933 BasicCegarLoop]: 2262 mSDtfsCounter, 3132 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 4469 mSolverCounterSat, 1961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 11477 SdHoareTripleChecker+Invalid, 6430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1961 IncrementalHoareTripleChecker+Valid, 4469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:19,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3281 Valid, 11477 Invalid, 6430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1961 Valid, 4469 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-16 03:55:19,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2021-12-16 03:55:19,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3606. [2021-12-16 03:55:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 2630 states have (on average 1.3444866920152092) internal successors, (3536), 2658 states have internal predecessors, (3536), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2021-12-16 03:55:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 5091 transitions. [2021-12-16 03:55:19,741 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 5091 transitions. Word has length 458 [2021-12-16 03:55:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:19,742 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 5091 transitions. [2021-12-16 03:55:19,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-16 03:55:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 5091 transitions. [2021-12-16 03:55:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-12-16 03:55:19,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:19,752 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:19,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 03:55:19,752 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1282570820, now seen corresponding path program 1 times [2021-12-16 03:55:19,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:19,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173283918] [2021-12-16 03:55:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:19,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:55:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:55:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 03:55:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 03:55:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-16 03:55:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 03:55:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 03:55:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 03:55:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 03:55:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 03:55:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 03:55:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-16 03:55:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-16 03:55:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-16 03:55:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-16 03:55:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-16 03:55:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-16 03:55:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-16 03:55:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-16 03:55:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-16 03:55:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-16 03:55:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-16 03:55:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-16 03:55:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-12-16 03:55:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-16 03:55:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-16 03:55:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2021-12-16 03:55:20,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:20,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173283918] [2021-12-16 03:55:20,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173283918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:20,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:55:20,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 03:55:20,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974229054] [2021-12-16 03:55:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:20,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 03:55:20,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:20,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 03:55:20,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-16 03:55:20,284 INFO L87 Difference]: Start difference. First operand 3606 states and 5091 transitions. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-16 03:55:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:24,761 INFO L93 Difference]: Finished difference Result 9703 states and 14702 transitions. [2021-12-16 03:55:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 03:55:24,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 460 [2021-12-16 03:55:24,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:24,783 INFO L225 Difference]: With dead ends: 9703 [2021-12-16 03:55:24,783 INFO L226 Difference]: Without dead ends: 6586 [2021-12-16 03:55:24,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2021-12-16 03:55:24,797 INFO L933 BasicCegarLoop]: 2307 mSDtfsCounter, 3596 mSDsluCounter, 9518 mSDsCounter, 0 mSdLazyCounter, 4370 mSolverCounterSat, 2593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 11825 SdHoareTripleChecker+Invalid, 6963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2593 IncrementalHoareTripleChecker+Valid, 4370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:24,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3746 Valid, 11825 Invalid, 6963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2593 Valid, 4370 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 03:55:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2021-12-16 03:55:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 3612. [2021-12-16 03:55:24,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 2636 states have (on average 1.3437025796661608) internal successors, (3542), 2664 states have internal predecessors, (3542), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2021-12-16 03:55:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 5097 transitions. [2021-12-16 03:55:24,990 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 5097 transitions. Word has length 460 [2021-12-16 03:55:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:24,991 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 5097 transitions. [2021-12-16 03:55:24,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-16 03:55:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 5097 transitions. [2021-12-16 03:55:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-12-16 03:55:25,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:25,000 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:25,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 03:55:25,001 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1486019019, now seen corresponding path program 1 times [2021-12-16 03:55:25,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:25,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830970736] [2021-12-16 03:55:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:25,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:55:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:55:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 03:55:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 03:55:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-16 03:55:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 03:55:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 03:55:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 03:55:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 03:55:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 03:55:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 03:55:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-16 03:55:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-16 03:55:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-16 03:55:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-16 03:55:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-16 03:55:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-16 03:55:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-16 03:55:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-16 03:55:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-16 03:55:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-12-16 03:55:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-16 03:55:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-16 03:55:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-12-16 03:55:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-16 03:55:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2021-12-16 03:55:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2021-12-16 03:55:25,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:25,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830970736] [2021-12-16 03:55:25,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830970736] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:55:25,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609083034] [2021-12-16 03:55:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:25,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:55:25,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:55:25,596 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) [2021-12-16 03:55:25,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:55:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:26,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 4432 conjuncts, 59 conjunts are in the unsatisfiable core [2021-12-16 03:55:26,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:55:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 2724 trivial. 0 not checked. [2021-12-16 03:55:27,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:55:27,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609083034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:27,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:55:27,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2021-12-16 03:55:27,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499425648] [2021-12-16 03:55:27,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:27,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 03:55:27,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:27,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 03:55:27,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-12-16 03:55:27,285 INFO L87 Difference]: Start difference. First operand 3612 states and 5097 transitions. Second operand has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-16 03:55:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:27,537 INFO L93 Difference]: Finished difference Result 7546 states and 10805 transitions. [2021-12-16 03:55:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 03:55:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) Word has length 462 [2021-12-16 03:55:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:27,547 INFO L225 Difference]: With dead ends: 7546 [2021-12-16 03:55:27,547 INFO L226 Difference]: Without dead ends: 4423 [2021-12-16 03:55:27,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 573 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-12-16 03:55:27,555 INFO L933 BasicCegarLoop]: 1968 mSDtfsCounter, 286 mSDsluCounter, 15383 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 17351 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:27,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 17351 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:55:27,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2021-12-16 03:55:27,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 3632. [2021-12-16 03:55:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (825), 757 states have call predecessors, (825), 744 states have call successors, (825) [2021-12-16 03:55:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5127 transitions. [2021-12-16 03:55:27,686 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5127 transitions. Word has length 462 [2021-12-16 03:55:27,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:27,686 INFO L470 AbstractCegarLoop]: Abstraction has 3632 states and 5127 transitions. [2021-12-16 03:55:27,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-16 03:55:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5127 transitions. [2021-12-16 03:55:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-12-16 03:55:27,698 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:27,698 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:27,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:55:27,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-16 03:55:27,908 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:27,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:27,909 INFO L85 PathProgramCache]: Analyzing trace with hash 983297457, now seen corresponding path program 1 times [2021-12-16 03:55:27,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:27,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222651057] [2021-12-16 03:55:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:27,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:55:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:55:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 03:55:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 03:55:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-16 03:55:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 03:55:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 03:55:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 03:55:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 03:55:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 03:55:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 03:55:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-16 03:55:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-16 03:55:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-16 03:55:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-16 03:55:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-16 03:55:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-16 03:55:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-16 03:55:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-16 03:55:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-16 03:55:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-16 03:55:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-16 03:55:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-16 03:55:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-16 03:55:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 03:55:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-16 03:55:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-12-16 03:55:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2021-12-16 03:55:28,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:28,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222651057] [2021-12-16 03:55:28,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222651057] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:55:28,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385564113] [2021-12-16 03:55:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:28,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:55:28,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:55:28,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:55:28,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 03:55:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:29,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 4458 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-16 03:55:29,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:55:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2021-12-16 03:55:29,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:55:29,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385564113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:29,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:55:29,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2021-12-16 03:55:29,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658449391] [2021-12-16 03:55:29,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:29,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:55:29,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:29,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:55:29,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-16 03:55:29,918 INFO L87 Difference]: Start difference. First operand 3632 states and 5127 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2021-12-16 03:55:30,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:55:30,051 INFO L93 Difference]: Finished difference Result 6783 states and 9578 transitions. [2021-12-16 03:55:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:55:30,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) Word has length 468 [2021-12-16 03:55:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:55:30,063 INFO L225 Difference]: With dead ends: 6783 [2021-12-16 03:55:30,064 INFO L226 Difference]: Without dead ends: 3640 [2021-12-16 03:55:30,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 586 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-16 03:55:30,073 INFO L933 BasicCegarLoop]: 1588 mSDtfsCounter, 4 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6347 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:55:30,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6347 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:55:30,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2021-12-16 03:55:30,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3637. [2021-12-16 03:55:30,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3637 states, 2655 states have (on average 1.3412429378531074) internal successors, (3561), 2681 states have internal predecessors, (3561), 746 states have call successors, (746), 217 states have call predecessors, (746), 235 states have return successors, (826), 759 states have call predecessors, (826), 745 states have call successors, (826) [2021-12-16 03:55:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3637 states to 3637 states and 5133 transitions. [2021-12-16 03:55:30,191 INFO L78 Accepts]: Start accepts. Automaton has 3637 states and 5133 transitions. Word has length 468 [2021-12-16 03:55:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:55:30,192 INFO L470 AbstractCegarLoop]: Abstraction has 3637 states and 5133 transitions. [2021-12-16 03:55:30,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2021-12-16 03:55:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3637 states and 5133 transitions. [2021-12-16 03:55:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-12-16 03:55:30,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:55:30,203 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:55:30,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:55:30,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-16 03:55:30,416 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:55:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:55:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash 746029045, now seen corresponding path program 2 times [2021-12-16 03:55:30,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:55:30,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506260641] [2021-12-16 03:55:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:55:30,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:55:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:55:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 03:55:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:55:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 03:55:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:55:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:55:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:55:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 03:55:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:55:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:55:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 03:55:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:55:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:55:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:55:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:55:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:55:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:55:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 03:55:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:55:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:55:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:55:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 03:55:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:55:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:55:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:55:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:55:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:55:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:55:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 03:55:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 03:55:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-16 03:55:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 03:55:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 03:55:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 03:55:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 03:55:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 03:55:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 03:55:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 03:55:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-16 03:55:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-16 03:55:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-16 03:55:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-16 03:55:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-16 03:55:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-16 03:55:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-16 03:55:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-16 03:55:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-16 03:55:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-16 03:55:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-16 03:55:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-16 03:55:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-16 03:55:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-16 03:55:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:55:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:55:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 03:55:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-12-16 03:55:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-16 03:55:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:55:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2021-12-16 03:55:30,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:55:30,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506260641] [2021-12-16 03:55:30,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506260641] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:55:30,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656046870] [2021-12-16 03:55:30,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:55:30,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:55:30,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:55:30,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:55:30,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 03:55:32,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 03:55:32,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:55:32,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 4484 conjuncts, 56 conjunts are in the unsatisfiable core [2021-12-16 03:55:32,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:55:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2021-12-16 03:55:32,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:55:32,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656046870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:55:32,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:55:32,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2021-12-16 03:55:32,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019393149] [2021-12-16 03:55:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:55:32,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 03:55:32,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:55:32,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 03:55:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-12-16 03:55:32,778 INFO L87 Difference]: Start difference. First operand 3637 states and 5133 transitions. Second operand has 11 states, 11 states have (on average 18.09090909090909) internal successors, (199), 9 states have internal predecessors, (199), 4 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (63), 6 states have call predecessors, (63), 4 states have call successors, (63)