./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.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 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:24:12,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:24:12,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:24:12,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:24:12,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:24:12,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:24:12,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:24:12,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:24:12,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:24:12,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:24:12,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:24:12,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:24:12,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:24:12,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:24:12,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:24:12,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:24:12,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:24:12,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:24:12,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:24:12,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:24:12,680 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:24:12,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:24:12,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:24:12,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:24:12,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:24:12,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:24:12,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:24:12,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:24:12,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:24:12,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:24:12,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:24:12,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:24:12,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:24:12,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:24:12,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:24:12,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:24:12,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:24:12,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:24:12,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:24:12,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:24:12,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:24:12,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:24:12,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:24:12,725 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:24:12,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:24:12,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:24:12,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:24:12,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:24:12,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:24:12,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:24:12,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:24:12,738 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:24:12,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:24:12,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:24:12,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:24:12,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:24:12,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:24:12,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:24:12,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:24:12,740 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:24:12,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:24:12,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:24:12,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:24:12,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:24:12,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:24:12,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:24:12,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:24:12,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:24:12,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:24:12,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:24:12,743 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:24:12,743 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:24:12,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:24:12,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 [2022-07-14 01:24:12,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:24:12,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:24:12,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:24:12,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:24:12,981 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:24:12,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-14 01:24:13,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf77fc040/cd9e931780444b56b5514c69383c0321/FLAGc1627e61f [2022-07-14 01:24:13,779 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:24:13,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-14 01:24:13,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf77fc040/cd9e931780444b56b5514c69383c0321/FLAGc1627e61f [2022-07-14 01:24:14,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf77fc040/cd9e931780444b56b5514c69383c0321 [2022-07-14 01:24:14,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:24:14,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:24:14,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:24:14,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:24:14,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:24:14,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:24:14" (1/1) ... [2022-07-14 01:24:14,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32200f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:14, skipping insertion in model container [2022-07-14 01:24:14,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:24:14" (1/1) ... [2022-07-14 01:24:14,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:24:14,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:24:16,336 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-07-14 01:24:16,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:24:16,685 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:24:17,019 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-07-14 01:24:17,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:24:17,123 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:24:17,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17 WrapperNode [2022-07-14 01:24:17,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:24:17,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:24:17,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:24:17,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:24:17,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,427 INFO L137 Inliner]: procedures = 306, calls = 1743, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 3808 [2022-07-14 01:24:17,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:24:17,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:24:17,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:24:17,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:24:17,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:24:17,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:24:17,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:24:17,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:24:17,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (1/1) ... [2022-07-14 01:24:17,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:24:17,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:24:17,657 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) [2022-07-14 01:24:17,674 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 [2022-07-14 01:24:17,705 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 01:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 01:24:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-07-14 01:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-07-14 01:24:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-14 01:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-14 01:24:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:24:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:24:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure msb_stop [2022-07-14 01:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_stop [2022-07-14 01:24:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_pba [2022-07-14 01:24:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_pba [2022-07-14 01:24:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-14 01:24:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-14 01:24:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:24:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2022-07-14 01:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2022-07-14 01:24:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-14 01:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-14 01:24:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-14 01:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-14 01:24:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:24:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:24:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure msb_switch_to_parallel [2022-07-14 01:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_switch_to_parallel [2022-07-14 01:24:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:24:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:24:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure msb_validate_used_block_bitmap [2022-07-14 01:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_validate_used_block_bitmap [2022-07-14 01:24:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:24:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure msb_verify_block [2022-07-14 01:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_verify_block [2022-07-14 01:24:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:24:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-14 01:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-14 01:24:17,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_msb_disk_lock [2022-07-14 01:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_msb_disk_lock [2022-07-14 01:24:17,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:24:17,713 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_write [2022-07-14 01:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_write [2022-07-14 01:24:17,713 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 01:24:17,714 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-14 01:24:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-14 01:24:17,714 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_set_drvdata [2022-07-14 01:24:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_set_drvdata [2022-07-14 01:24:17,715 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request [2022-07-14 01:24:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request [2022-07-14 01:24:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:24:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-14 01:24:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-14 01:24:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure msb_invalidate_reg_window [2022-07-14 01:24:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_invalidate_reg_window [2022-07-14 01:24:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure msb_io_work [2022-07-14 01:24:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_io_work [2022-07-14 01:24:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:24:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:24:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2022-07-14 01:24:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2022-07-14 01:24:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:24:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure msb_erase_block [2022-07-14 01:24:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_erase_block [2022-07-14 01:24:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:24:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_get_drvdata [2022-07-14 01:24:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_get_drvdata [2022-07-14 01:24:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure msb_data_clear [2022-07-14 01:24:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_data_clear [2022-07-14 01:24:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 01:24:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 01:24:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 01:24:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 01:24:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 01:24:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 01:24:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 01:24:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 01:24:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 01:24:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 01:24:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_bad_block_table [2022-07-14 01:24:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_bad_block_table [2022-07-14 01:24:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure msb_update_block [2022-07-14 01:24:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_update_block [2022-07-14 01:24:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_flush [2022-07-14 01:24:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_flush [2022-07-14 01:24:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2022-07-14 01:24:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2022-07-14 01:24:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-14 01:24:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-14 01:24:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_start [2022-07-14 01:24:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_start [2022-07-14 01:24:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure msb_run_state_machine [2022-07-14 01:24:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_run_state_machine [2022-07-14 01:24:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure msb_sg_copy [2022-07-14 01:24:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_sg_copy [2022-07-14 01:24:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-14 01:24:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-14 01:24:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 01:24:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 01:24:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_zero_bit [2022-07-14 01:24:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_zero_bit [2022-07-14 01:24:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_memstick_host [2022-07-14 01:24:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_memstick_host [2022-07-14 01:24:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:24:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-14 01:24:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-14 01:24:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_lba [2022-07-14 01:24:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_lba [2022-07-14 01:24:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure msb_reset [2022-07-14 01:24:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_reset [2022-07-14 01:24:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-07-14 01:24:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-07-14 01:24:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2022-07-14 01:24:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2022-07-14 01:24:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:24:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:24:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-07-14 01:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure msb_bd_getgeo [2022-07-14 01:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_bd_getgeo [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure msb_remove [2022-07-14 01:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_remove [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-14 01:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_bad [2022-07-14 01:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_bad [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:24:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_page [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_page [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2022-07-14 01:24:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure msb_set_overwrite_flag [2022-07-14 01:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_set_overwrite_flag [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure msb_disk_release [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_disk_release [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_block_used [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_block_used [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_discard [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_discard [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure msb_start [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_start [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-14 01:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-14 01:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure msb_init_card [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_init_card [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_one [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_one [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-14 01:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_msb_disk_lock [2022-07-14 01:24:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_msb_disk_lock [2022-07-14 01:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:24:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:24:18,431 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:24:18,437 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:24:18,651 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:24:20,898 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:24:20,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:24:20,922 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:24:20,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:24:20 BoogieIcfgContainer [2022-07-14 01:24:20,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:24:20,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:24:20,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:24:20,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:24:20,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:24:14" (1/3) ... [2022-07-14 01:24:20,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cd3525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:24:20, skipping insertion in model container [2022-07-14 01:24:20,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:17" (2/3) ... [2022-07-14 01:24:20,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cd3525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:24:20, skipping insertion in model container [2022-07-14 01:24:20,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:24:20" (3/3) ... [2022-07-14 01:24:20,944 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-14 01:24:20,959 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:24:20,959 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:24:21,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:24:21,076 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@252d0334, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@647163a4 [2022-07-14 01:24:21,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:24:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 1468 states, 1036 states have (on average 1.3793436293436294) internal successors, (1429), 1080 states have internal predecessors, (1429), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) [2022-07-14 01:24:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 01:24:21,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:21,098 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:21,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:21,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:21,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1635477223, now seen corresponding path program 1 times [2022-07-14 01:24:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:21,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768522475] [2022-07-14 01:24:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:21,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:21,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:21,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768522475] [2022-07-14 01:24:21,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768522475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:21,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:21,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:24:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100896143] [2022-07-14 01:24:21,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:21,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:24:21,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:24:21,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:24:21,855 INFO L87 Difference]: Start difference. First operand has 1468 states, 1036 states have (on average 1.3793436293436294) internal successors, (1429), 1080 states have internal predecessors, (1429), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:25,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:24:25,155 INFO L93 Difference]: Finished difference Result 3245 states and 4865 transitions. [2022-07-14 01:24:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:24:25,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-07-14 01:24:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:24:25,223 INFO L225 Difference]: With dead ends: 3245 [2022-07-14 01:24:25,224 INFO L226 Difference]: Without dead ends: 1755 [2022-07-14 01:24:25,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:25,244 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1554 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:24:25,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 3064 Invalid, 2422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1498 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-14 01:24:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2022-07-14 01:24:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1443. [2022-07-14 01:24:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1019 states have (on average 1.3631010794896958) internal successors, (1389), 1055 states have internal predecessors, (1389), 337 states have call successors, (337), 87 states have call predecessors, (337), 86 states have return successors, (328), 322 states have call predecessors, (328), 328 states have call successors, (328) [2022-07-14 01:24:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2054 transitions. [2022-07-14 01:24:25,434 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2054 transitions. Word has length 84 [2022-07-14 01:24:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:24:25,435 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 2054 transitions. [2022-07-14 01:24:25,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2054 transitions. [2022-07-14 01:24:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 01:24:25,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:25,446 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:25,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:24:25,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:25,453 INFO L85 PathProgramCache]: Analyzing trace with hash 985351915, now seen corresponding path program 1 times [2022-07-14 01:24:25,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:25,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151342362] [2022-07-14 01:24:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:25,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:25,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151342362] [2022-07-14 01:24:25,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151342362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:25,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:25,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:24:25,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795780113] [2022-07-14 01:24:25,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:25,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:24:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:25,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:24:25,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:25,826 INFO L87 Difference]: Start difference. First operand 1443 states and 2054 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 01:24:28,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:24:36,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:24:36,557 INFO L93 Difference]: Finished difference Result 4870 states and 7168 transitions. [2022-07-14 01:24:36,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:24:36,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2022-07-14 01:24:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:24:36,587 INFO L225 Difference]: With dead ends: 4870 [2022-07-14 01:24:36,588 INFO L226 Difference]: Without dead ends: 3447 [2022-07-14 01:24:36,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:24:36,598 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 3727 mSDsluCounter, 4153 mSDsCounter, 0 mSdLazyCounter, 3824 mSolverCounterSat, 2170 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 6400 SdHoareTripleChecker+Invalid, 5995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2170 IncrementalHoareTripleChecker+Valid, 3824 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:24:36,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3990 Valid, 6400 Invalid, 5995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2170 Valid, 3824 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-07-14 01:24:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2022-07-14 01:24:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2804. [2022-07-14 01:24:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 1982 states have (on average 1.3647830474268416) internal successors, (2705), 2050 states have internal predecessors, (2705), 650 states have call successors, (650), 171 states have call predecessors, (650), 171 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-14 01:24:36,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4002 transitions. [2022-07-14 01:24:36,770 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4002 transitions. Word has length 84 [2022-07-14 01:24:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:24:36,771 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4002 transitions. [2022-07-14 01:24:36,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 01:24:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4002 transitions. [2022-07-14 01:24:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-14 01:24:36,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:36,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:36,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:24:36,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:36,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:36,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1154429741, now seen corresponding path program 1 times [2022-07-14 01:24:36,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:36,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598261433] [2022-07-14 01:24:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:36,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:37,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:37,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598261433] [2022-07-14 01:24:37,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598261433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:37,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:37,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:24:37,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623972699] [2022-07-14 01:24:37,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:37,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:24:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:24:37,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:37,122 INFO L87 Difference]: Start difference. First operand 2804 states and 4002 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:24:42,257 INFO L93 Difference]: Finished difference Result 3423 states and 5109 transitions. [2022-07-14 01:24:42,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:24:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-07-14 01:24:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:24:42,288 INFO L225 Difference]: With dead ends: 3423 [2022-07-14 01:24:42,289 INFO L226 Difference]: Without dead ends: 3420 [2022-07-14 01:24:42,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:24:42,295 INFO L413 NwaCegarLoop]: 1907 mSDtfsCounter, 2912 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 1273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 4491 SdHoareTripleChecker+Invalid, 3329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:24:42,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 4491 Invalid, 3329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1273 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-14 01:24:42,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2022-07-14 01:24:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 2803. [2022-07-14 01:24:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 1982 states have (on average 1.3642785065590313) internal successors, (2704), 2049 states have internal predecessors, (2704), 649 states have call successors, (649), 171 states have call predecessors, (649), 171 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-14 01:24:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4000 transitions. [2022-07-14 01:24:42,453 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4000 transitions. Word has length 87 [2022-07-14 01:24:42,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:24:42,454 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 4000 transitions. [2022-07-14 01:24:42,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4000 transitions. [2022-07-14 01:24:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-14 01:24:42,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:42,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:42,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:24:42,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:42,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1427090163, now seen corresponding path program 1 times [2022-07-14 01:24:42,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:42,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55946244] [2022-07-14 01:24:42,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:42,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:42,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:42,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55946244] [2022-07-14 01:24:42,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55946244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:42,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:42,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:24:42,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625251136] [2022-07-14 01:24:42,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:42,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:24:42,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:42,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:24:42,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:42,748 INFO L87 Difference]: Start difference. First operand 2803 states and 4000 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:45,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:24:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:24:48,691 INFO L93 Difference]: Finished difference Result 3429 states and 5114 transitions. [2022-07-14 01:24:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 01:24:48,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2022-07-14 01:24:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:24:48,725 INFO L225 Difference]: With dead ends: 3429 [2022-07-14 01:24:48,725 INFO L226 Difference]: Without dead ends: 3426 [2022-07-14 01:24:48,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:24:48,730 INFO L413 NwaCegarLoop]: 1896 mSDtfsCounter, 3171 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 1362 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1362 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:24:48,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 3609 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1362 Valid, 1516 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-07-14 01:24:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2022-07-14 01:24:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 2806. [2022-07-14 01:24:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 1985 states have (on average 1.363727959697733) internal successors, (2707), 2051 states have internal predecessors, (2707), 648 states have call successors, (648), 172 states have call predecessors, (648), 172 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-14 01:24:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 4002 transitions. [2022-07-14 01:24:48,875 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 4002 transitions. Word has length 88 [2022-07-14 01:24:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:24:48,876 INFO L495 AbstractCegarLoop]: Abstraction has 2806 states and 4002 transitions. [2022-07-14 01:24:48,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:48,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 4002 transitions. [2022-07-14 01:24:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-14 01:24:48,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:48,878 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:48,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:24:48,878 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:48,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:48,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1289633520, now seen corresponding path program 1 times [2022-07-14 01:24:48,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:48,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112175100] [2022-07-14 01:24:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:48,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:49,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:49,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112175100] [2022-07-14 01:24:49,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112175100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:49,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:49,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:24:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111658271] [2022-07-14 01:24:49,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:49,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:24:49,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:49,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:24:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:49,168 INFO L87 Difference]: Start difference. First operand 2806 states and 4002 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:54,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:24:54,286 INFO L93 Difference]: Finished difference Result 4912 states and 7227 transitions. [2022-07-14 01:24:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:24:54,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-07-14 01:24:54,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:24:54,325 INFO L225 Difference]: With dead ends: 4912 [2022-07-14 01:24:54,326 INFO L226 Difference]: Without dead ends: 4908 [2022-07-14 01:24:54,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:24:54,332 INFO L413 NwaCegarLoop]: 2423 mSDtfsCounter, 3211 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 1456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3444 SdHoareTripleChecker+Valid, 5414 SdHoareTripleChecker+Invalid, 3846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1456 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:24:54,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3444 Valid, 5414 Invalid, 3846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1456 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-14 01:24:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4908 states. [2022-07-14 01:24:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4908 to 4064. [2022-07-14 01:24:54,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 2868 states have (on average 1.3539051603905161) internal successors, (3883), 2955 states have internal predecessors, (3883), 919 states have call successors, (919), 275 states have call predecessors, (919), 276 states have return successors, (922), 893 states have call predecessors, (922), 914 states have call successors, (922) [2022-07-14 01:24:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5724 transitions. [2022-07-14 01:24:54,553 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5724 transitions. Word has length 89 [2022-07-14 01:24:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:24:54,554 INFO L495 AbstractCegarLoop]: Abstraction has 4064 states and 5724 transitions. [2022-07-14 01:24:54,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:54,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5724 transitions. [2022-07-14 01:24:54,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-14 01:24:54,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:54,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:54,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:24:54,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:54,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:54,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1323449750, now seen corresponding path program 1 times [2022-07-14 01:24:54,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:54,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932478989] [2022-07-14 01:24:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:54,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:54,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:54,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932478989] [2022-07-14 01:24:54,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932478989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:54,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:54,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:24:54,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583684215] [2022-07-14 01:24:54,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:54,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:24:54,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:54,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:24:54,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:54,805 INFO L87 Difference]: Start difference. First operand 4064 states and 5724 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:24:58,702 INFO L93 Difference]: Finished difference Result 4931 states and 7241 transitions. [2022-07-14 01:24:58,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:24:58,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2022-07-14 01:24:58,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:24:58,735 INFO L225 Difference]: With dead ends: 4931 [2022-07-14 01:24:58,735 INFO L226 Difference]: Without dead ends: 4927 [2022-07-14 01:24:58,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:24:58,740 INFO L413 NwaCegarLoop]: 1900 mSDtfsCounter, 2864 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 1279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1279 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:24:58,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 3867 Invalid, 2832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1279 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-14 01:24:58,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2022-07-14 01:24:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4096. [2022-07-14 01:24:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4096 states, 2888 states have (on average 1.350415512465374) internal successors, (3900), 2973 states have internal predecessors, (3900), 925 states have call successors, (925), 281 states have call predecessors, (925), 282 states have return successors, (930), 901 states have call predecessors, (930), 922 states have call successors, (930) [2022-07-14 01:24:58,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4096 states to 4096 states and 5755 transitions. [2022-07-14 01:24:58,967 INFO L78 Accepts]: Start accepts. Automaton has 4096 states and 5755 transitions. Word has length 90 [2022-07-14 01:24:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:24:58,969 INFO L495 AbstractCegarLoop]: Abstraction has 4096 states and 5755 transitions. [2022-07-14 01:24:58,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:24:58,969 INFO L276 IsEmpty]: Start isEmpty. Operand 4096 states and 5755 transitions. [2022-07-14 01:24:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-14 01:24:58,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:58,973 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:24:58,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 01:24:58,973 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1923209549, now seen corresponding path program 1 times [2022-07-14 01:24:58,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:58,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86588707] [2022-07-14 01:24:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:58,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:24:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:24:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:24:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:24:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 01:24:59,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:59,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86588707] [2022-07-14 01:24:59,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86588707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:59,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:59,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:24:59,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575882712] [2022-07-14 01:24:59,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:59,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:24:59,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:59,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:24:59,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:24:59,204 INFO L87 Difference]: Start difference. First operand 4096 states and 5755 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:25:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:02,371 INFO L93 Difference]: Finished difference Result 4927 states and 7235 transitions. [2022-07-14 01:25:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:25:02,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-07-14 01:25:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:02,423 INFO L225 Difference]: With dead ends: 4927 [2022-07-14 01:25:02,424 INFO L226 Difference]: Without dead ends: 4911 [2022-07-14 01:25:02,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:25:02,429 INFO L413 NwaCegarLoop]: 1891 mSDtfsCounter, 3159 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 1353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1353 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:02,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 3604 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1353 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-14 01:25:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2022-07-14 01:25:02,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4082. [2022-07-14 01:25:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 2877 states have (on average 1.3503649635036497) internal successors, (3885), 2960 states have internal predecessors, (3885), 922 states have call successors, (922), 281 states have call predecessors, (922), 282 states have return successors, (928), 900 states have call predecessors, (928), 920 states have call successors, (928) [2022-07-14 01:25:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 5735 transitions. [2022-07-14 01:25:02,656 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 5735 transitions. Word has length 91 [2022-07-14 01:25:02,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:02,657 INFO L495 AbstractCegarLoop]: Abstraction has 4082 states and 5735 transitions. [2022-07-14 01:25:02,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:25:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 5735 transitions. [2022-07-14 01:25:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-14 01:25:02,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:02,666 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:25:02,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 01:25:02,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash 172474476, now seen corresponding path program 1 times [2022-07-14 01:25:02,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:02,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629435054] [2022-07-14 01:25:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:25:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:25:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:25:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:25:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:25:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:25:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 01:25:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:25:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:02,949 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-14 01:25:02,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:02,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629435054] [2022-07-14 01:25:02,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629435054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:02,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:02,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:25:02,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55112217] [2022-07-14 01:25:02,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:02,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:25:02,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:25:02,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:25:02,952 INFO L87 Difference]: Start difference. First operand 4082 states and 5735 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 01:25:12,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:15,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:18,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:21,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:24,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:25,848 INFO L93 Difference]: Finished difference Result 11440 states and 16539 transitions. [2022-07-14 01:25:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 01:25:25,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 144 [2022-07-14 01:25:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:25,886 INFO L225 Difference]: With dead ends: 11440 [2022-07-14 01:25:25,887 INFO L226 Difference]: Without dead ends: 7378 [2022-07-14 01:25:25,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-14 01:25:25,911 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 6457 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 8480 mSolverCounterSat, 4265 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6774 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 12750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4265 IncrementalHoareTripleChecker+Valid, 8480 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6774 Valid, 2790 Invalid, 12750 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4265 Valid, 8480 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2022-07-14 01:25:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7378 states. [2022-07-14 01:25:26,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7378 to 6120. [2022-07-14 01:25:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6120 states, 4318 states have (on average 1.351088466882816) internal successors, (5834), 4441 states have internal predecessors, (5834), 1377 states have call successors, (1377), 423 states have call predecessors, (1377), 424 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-14 01:25:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 8594 transitions. [2022-07-14 01:25:26,263 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 8594 transitions. Word has length 144 [2022-07-14 01:25:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:26,263 INFO L495 AbstractCegarLoop]: Abstraction has 6120 states and 8594 transitions. [2022-07-14 01:25:26,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 01:25:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 8594 transitions. [2022-07-14 01:25:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-14 01:25:26,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:26,270 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:25:26,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 01:25:26,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:26,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:26,271 INFO L85 PathProgramCache]: Analyzing trace with hash 491187115, now seen corresponding path program 1 times [2022-07-14 01:25:26,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:26,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128611309] [2022-07-14 01:25:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:26,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:25:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:25:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:25:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:25:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:25:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:25:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 01:25:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:25:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-14 01:25:26,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:26,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128611309] [2022-07-14 01:25:26,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128611309] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:26,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:26,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:25:26,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122222231] [2022-07-14 01:25:26,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:26,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:25:26,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:25:26,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:25:26,567 INFO L87 Difference]: Start difference. First operand 6120 states and 8594 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 01:25:32,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:35,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:37,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:38,976 INFO L93 Difference]: Finished difference Result 13397 states and 19656 transitions. [2022-07-14 01:25:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:25:38,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 145 [2022-07-14 01:25:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:39,009 INFO L225 Difference]: With dead ends: 13397 [2022-07-14 01:25:39,009 INFO L226 Difference]: Without dead ends: 7297 [2022-07-14 01:25:39,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:25:39,047 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 3663 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 4113 mSolverCounterSat, 2622 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 6738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2622 IncrementalHoareTripleChecker+Valid, 4113 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:39,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3736 Valid, 2459 Invalid, 6738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2622 Valid, 4113 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-07-14 01:25:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7297 states. [2022-07-14 01:25:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7297 to 6084. [2022-07-14 01:25:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6084 states, 4282 states have (on average 1.2828117702008408) internal successors, (5493), 4405 states have internal predecessors, (5493), 1377 states have call successors, (1377), 423 states have call predecessors, (1377), 424 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-14 01:25:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 8253 transitions. [2022-07-14 01:25:39,427 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 8253 transitions. Word has length 145 [2022-07-14 01:25:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:39,428 INFO L495 AbstractCegarLoop]: Abstraction has 6084 states and 8253 transitions. [2022-07-14 01:25:39,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 01:25:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 8253 transitions. [2022-07-14 01:25:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-14 01:25:39,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:39,435 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:25:39,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 01:25:39,436 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash 913888941, now seen corresponding path program 1 times [2022-07-14 01:25:39,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:39,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030808606] [2022-07-14 01:25:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:39,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:25:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:25:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:25:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:25:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:25:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:25:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 01:25:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:25:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-14 01:25:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:39,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030808606] [2022-07-14 01:25:39,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030808606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:39,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:39,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:25:39,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628287115] [2022-07-14 01:25:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:39,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:25:39,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:25:39,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:25:39,690 INFO L87 Difference]: Start difference. First operand 6084 states and 8253 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:25:46,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:48,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:51,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:53,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:55,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:56,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:56,613 INFO L93 Difference]: Finished difference Result 7299 states and 10371 transitions. [2022-07-14 01:25:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:25:56,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2022-07-14 01:25:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:56,642 INFO L225 Difference]: With dead ends: 7299 [2022-07-14 01:25:56,643 INFO L226 Difference]: Without dead ends: 7296 [2022-07-14 01:25:56,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:25:56,649 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 2142 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 4831 mSolverCounterSat, 1581 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 6416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1581 IncrementalHoareTripleChecker+Valid, 4831 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:56,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2392 Valid, 2631 Invalid, 6416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1581 Valid, 4831 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2022-07-14 01:25:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7296 states. [2022-07-14 01:25:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7296 to 6083. [2022-07-14 01:25:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6083 states, 4282 states have (on average 1.2821111630079403) internal successors, (5490), 4404 states have internal predecessors, (5490), 1376 states have call successors, (1376), 423 states have call predecessors, (1376), 424 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-14 01:25:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6083 states to 6083 states and 8249 transitions. [2022-07-14 01:25:56,988 INFO L78 Accepts]: Start accepts. Automaton has 6083 states and 8249 transitions. Word has length 145 [2022-07-14 01:25:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:56,989 INFO L495 AbstractCegarLoop]: Abstraction has 6083 states and 8249 transitions. [2022-07-14 01:25:56,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:25:56,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6083 states and 8249 transitions. [2022-07-14 01:25:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-14 01:25:56,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:56,998 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:25:56,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 01:25:56,998 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1737838048, now seen corresponding path program 1 times [2022-07-14 01:25:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:56,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493136978] [2022-07-14 01:25:56,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:25:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:25:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:25:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:25:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 01:25:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-14 01:25:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 01:25:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:25:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 01:25:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 01:25:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 01:25:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 01:25:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 01:25:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 01:25:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 01:25:57,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:57,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493136978] [2022-07-14 01:25:57,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493136978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:57,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:57,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:25:57,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217817123] [2022-07-14 01:25:57,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:57,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:25:57,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:57,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:25:57,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:25:57,347 INFO L87 Difference]: Start difference. First operand 6083 states and 8249 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 01:26:10,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:12,713 INFO L93 Difference]: Finished difference Result 16943 states and 23693 transitions. [2022-07-14 01:26:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 01:26:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2022-07-14 01:26:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:12,810 INFO L225 Difference]: With dead ends: 16943 [2022-07-14 01:26:12,810 INFO L226 Difference]: Without dead ends: 10880 [2022-07-14 01:26:12,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-07-14 01:26:12,837 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 4855 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 8333 mSolverCounterSat, 3412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5096 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 11746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3412 IncrementalHoareTripleChecker+Valid, 8333 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:12,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5096 Valid, 3249 Invalid, 11746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3412 Valid, 8333 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-07-14 01:26:12,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10880 states. [2022-07-14 01:26:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10880 to 8477. [2022-07-14 01:26:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8477 states, 6037 states have (on average 1.2920324664568494) internal successors, (7800), 6200 states have internal predecessors, (7800), 1830 states have call successors, (1830), 607 states have call predecessors, (1830), 609 states have return successors, (1841), 1787 states have call predecessors, (1841), 1829 states have call successors, (1841) [2022-07-14 01:26:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8477 states to 8477 states and 11471 transitions. [2022-07-14 01:26:13,537 INFO L78 Accepts]: Start accepts. Automaton has 8477 states and 11471 transitions. Word has length 162 [2022-07-14 01:26:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:13,538 INFO L495 AbstractCegarLoop]: Abstraction has 8477 states and 11471 transitions. [2022-07-14 01:26:13,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 01:26:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8477 states and 11471 transitions. [2022-07-14 01:26:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-14 01:26:13,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:13,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 01:26:13,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 01:26:13,567 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:13,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:13,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1075894051, now seen corresponding path program 1 times [2022-07-14 01:26:13,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:13,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536776876] [2022-07-14 01:26:13,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:13,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:26:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:26:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:26:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:26:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:26:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:26:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 01:26:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:26:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 01:26:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 01:26:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 01:26:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 01:26:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 01:26:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 01:26:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 01:26:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 01:26:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-14 01:26:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:13,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536776876] [2022-07-14 01:26:13,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536776876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:26:13,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:26:13,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:26:13,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916763857] [2022-07-14 01:26:13,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:26:13,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:26:13,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:26:13,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:26:13,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:26:13,987 INFO L87 Difference]: Start difference. First operand 8477 states and 11471 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 01:26:25,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:27,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:31,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:34,901 INFO L93 Difference]: Finished difference Result 22688 states and 31645 transitions. [2022-07-14 01:26:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 01:26:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-07-14 01:26:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:34,983 INFO L225 Difference]: With dead ends: 22688 [2022-07-14 01:26:34,983 INFO L226 Difference]: Without dead ends: 14241 [2022-07-14 01:26:35,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-07-14 01:26:35,018 INFO L413 NwaCegarLoop]: 2714 mSDtfsCounter, 5394 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 7073 mSolverCounterSat, 5081 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5650 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 12157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5081 IncrementalHoareTripleChecker+Valid, 7073 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:35,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5650 Valid, 3860 Invalid, 12157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5081 Valid, 7073 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2022-07-14 01:26:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2022-07-14 01:26:35,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 10949. [2022-07-14 01:26:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10949 states, 7859 states have (on average 1.296475378546889) internal successors, (10189), 8063 states have internal predecessors, (10189), 2282 states have call successors, (2282), 804 states have call predecessors, (2282), 807 states have return successors, (2297), 2227 states have call predecessors, (2297), 2281 states have call successors, (2297) [2022-07-14 01:26:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10949 states to 10949 states and 14768 transitions. [2022-07-14 01:26:35,875 INFO L78 Accepts]: Start accepts. Automaton has 10949 states and 14768 transitions. Word has length 209 [2022-07-14 01:26:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:35,876 INFO L495 AbstractCegarLoop]: Abstraction has 10949 states and 14768 transitions. [2022-07-14 01:26:35,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 01:26:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 10949 states and 14768 transitions. [2022-07-14 01:26:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-14 01:26:35,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:35,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:26:35,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 01:26:35,915 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2005424117, now seen corresponding path program 1 times [2022-07-14 01:26:35,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:35,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082522539] [2022-07-14 01:26:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:35,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:26:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:26:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:26:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:26:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:26:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:26:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 01:26:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-14 01:26:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 01:26:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 01:26:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 01:26:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 01:26:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 01:26:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 01:26:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 01:26:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 01:26:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 01:26:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-07-14 01:26:36,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:36,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082522539] [2022-07-14 01:26:36,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082522539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:26:36,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:26:36,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 01:26:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020737974] [2022-07-14 01:26:36,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:26:36,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 01:26:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:26:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 01:26:36,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:26:36,420 INFO L87 Difference]: Start difference. First operand 10949 states and 14768 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 01:26:50,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:52,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:57,208 INFO L93 Difference]: Finished difference Result 29797 states and 41558 transitions. [2022-07-14 01:26:57,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 01:26:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 237 [2022-07-14 01:26:57,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:57,291 INFO L225 Difference]: With dead ends: 29797 [2022-07-14 01:26:57,291 INFO L226 Difference]: Without dead ends: 18878 [2022-07-14 01:26:57,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-14 01:26:57,327 INFO L413 NwaCegarLoop]: 2921 mSDtfsCounter, 4745 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 10652 mSolverCounterSat, 4339 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4978 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 14993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4339 IncrementalHoareTripleChecker+Valid, 10652 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:57,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4978 Valid, 4886 Invalid, 14993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4339 Valid, 10652 Invalid, 2 Unknown, 0 Unchecked, 18.8s Time] [2022-07-14 01:26:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18878 states. [2022-07-14 01:26:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18878 to 10955. [2022-07-14 01:26:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10955 states, 7865 states have (on average 1.2962492053401145) internal successors, (10195), 8069 states have internal predecessors, (10195), 2282 states have call successors, (2282), 804 states have call predecessors, (2282), 807 states have return successors, (2297), 2227 states have call predecessors, (2297), 2281 states have call successors, (2297) [2022-07-14 01:26:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10955 states to 10955 states and 14774 transitions. [2022-07-14 01:26:58,322 INFO L78 Accepts]: Start accepts. Automaton has 10955 states and 14774 transitions. Word has length 237 [2022-07-14 01:26:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:58,323 INFO L495 AbstractCegarLoop]: Abstraction has 10955 states and 14774 transitions. [2022-07-14 01:26:58,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 01:26:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10955 states and 14774 transitions. [2022-07-14 01:26:58,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-14 01:26:58,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:58,370 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:26:58,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 01:26:58,370 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash -433931054, now seen corresponding path program 1 times [2022-07-14 01:26:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:58,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378525197] [2022-07-14 01:26:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:58,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:26:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:26:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:26:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:26:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:26:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:26:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 01:26:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 01:26:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 01:26:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-14 01:26:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:26:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 01:26:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 01:26:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 01:26:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 01:26:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:26:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 01:26:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-14 01:26:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 01:26:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 01:26:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-14 01:26:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-14 01:26:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-14 01:26:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 01:26:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 01:26:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 01:26:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 01:26:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-14 01:26:59,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:59,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378525197] [2022-07-14 01:26:59,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378525197] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:26:59,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781099977] [2022-07-14 01:26:59,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:59,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:26:59,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:26:59,211 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) [2022-07-14 01:26:59,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:27:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:00,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 2941 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:27:00,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:27:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-07-14 01:27:00,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:27:00,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781099977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:27:00,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:27:00,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-14 01:27:00,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742100349] [2022-07-14 01:27:00,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:27:00,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:27:00,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:27:00,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:27:00,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:27:00,134 INFO L87 Difference]: Start difference. First operand 10955 states and 14774 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:27:01,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:27:01,058 INFO L93 Difference]: Finished difference Result 24708 states and 33322 transitions. [2022-07-14 01:27:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:27:01,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 316 [2022-07-14 01:27:01,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:27:01,122 INFO L225 Difference]: With dead ends: 24708 [2022-07-14 01:27:01,122 INFO L226 Difference]: Without dead ends: 13783 [2022-07-14 01:27:01,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:27:01,154 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 1860 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:27:01,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 4002 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:27:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13783 states. [2022-07-14 01:27:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13783 to 13783. [2022-07-14 01:27:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13783 states, 9893 states have (on average 1.2980895582735268) internal successors, (12842), 10159 states have internal predecessors, (12842), 2858 states have call successors, (2858), 1027 states have call predecessors, (2858), 1031 states have return successors, (2877), 2790 states have call predecessors, (2877), 2857 states have call successors, (2877) [2022-07-14 01:27:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13783 states to 13783 states and 18577 transitions. [2022-07-14 01:27:02,074 INFO L78 Accepts]: Start accepts. Automaton has 13783 states and 18577 transitions. Word has length 316 [2022-07-14 01:27:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:27:02,074 INFO L495 AbstractCegarLoop]: Abstraction has 13783 states and 18577 transitions. [2022-07-14 01:27:02,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:27:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 13783 states and 18577 transitions. [2022-07-14 01:27:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-07-14 01:27:02,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:27:02,154 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:27:02,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:27:02,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-14 01:27:02,380 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:27:02,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:27:02,380 INFO L85 PathProgramCache]: Analyzing trace with hash -212847300, now seen corresponding path program 1 times [2022-07-14 01:27:02,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:27:02,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077365204] [2022-07-14 01:27:02,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:02,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:27:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:27:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:27:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 01:27:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 01:27:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 01:27:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:27:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:27:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 01:27:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 01:27:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 01:27:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-14 01:27:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:27:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 01:27:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:27:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 01:27:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 01:27:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 01:27:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:02,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:27:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 01:27:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-14 01:27:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 01:27:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 01:27:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:27:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 01:27:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:27:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 01:27:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:27:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-14 01:27:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-14 01:27:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-14 01:27:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-14 01:27:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 01:27:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-14 01:27:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 01:27:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 01:27:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 01:27:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 01:27:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-14 01:27:03,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:27:03,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077365204] [2022-07-14 01:27:03,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077365204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:27:03,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:27:03,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-14 01:27:03,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741430977] [2022-07-14 01:27:03,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:27:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 01:27:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:27:03,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 01:27:03,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-07-14 01:27:03,303 INFO L87 Difference]: Start difference. First operand 13783 states and 18577 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-07-14 01:27:10,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:25,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:27,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:29,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:33,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:39,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:42,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:44,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:47,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:49,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []