./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--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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--media--usb--dvb-usb-v2--dvb-usb-lmedm04.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 9baad8c3f39120ab2251378cc0d6fe7b52fdd04109a6ac87357d1c2188f7d5d6 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:06:44,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:06:44,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:06:44,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:06:44,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:06:44,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:06:44,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:06:44,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:06:44,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:06:44,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:06:44,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:06:44,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:06:44,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:06:44,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:06:44,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:06:44,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:06:44,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:06:44,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:06:44,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:06:44,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:06:44,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:06:44,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:06:44,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:06:44,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:06:44,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:06:44,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:06:44,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:06:44,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:06:44,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:06:44,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:06:44,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:06:44,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:06:44,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:06:44,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:06:44,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:06:44,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:06:44,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:06:44,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:06:44,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:06:44,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:06:44,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:06:44,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:06:44,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:06:44,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:06:44,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:06:44,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:06:44,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:06:44,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:06:44,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:06:44,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:06:44,416 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:06:44,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:06:44,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:06:44,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:06:44,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:06:44,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:06:44,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:06:44,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:06:44,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:06:44,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:06:44,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:06:44,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:06:44,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:06:44,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:06:44,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:06:44,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:06:44,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:06:44,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:06:44,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:06:44,420 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:06:44,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:06:44,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:06:44,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:06:44,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9baad8c3f39120ab2251378cc0d6fe7b52fdd04109a6ac87357d1c2188f7d5d6 [2021-12-14 18:06:44,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:06:44,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:06:44,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:06:44,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:06:44,634 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:06:44,635 INFO L432 ainManager$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--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i [2021-12-14 18:06:44,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64769c353/59d4eee8f0fb42c19d8937ef66d1ca97/FLAG986d9d69c [2021-12-14 18:06:45,355 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:06:45,359 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--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i [2021-12-14 18:06:45,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64769c353/59d4eee8f0fb42c19d8937ef66d1ca97/FLAG986d9d69c [2021-12-14 18:06:45,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64769c353/59d4eee8f0fb42c19d8937ef66d1ca97 [2021-12-14 18:06:45,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:06:45,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:06:45,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:06:45,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:06:45,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:06:45,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:06:45" (1/1) ... [2021-12-14 18:06:45,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e91687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:45, skipping insertion in model container [2021-12-14 18:06:45,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:06:45" (1/1) ... [2021-12-14 18:06:45,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:06:45,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:06:46,823 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--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i[299448,299461] [2021-12-14 18:06:46,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:06:47,027 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:06:47,275 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--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i[299448,299461] [2021-12-14 18:06:47,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:06:47,373 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:06:47,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47 WrapperNode [2021-12-14 18:06:47,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:06:47,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:06:47,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:06:47,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:06:47,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,569 INFO L137 Inliner]: procedures = 222, calls = 2022, calls flagged for inlining = 78, calls inlined = 59, statements flattened = 3180 [2021-12-14 18:06:47,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:06:47,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:06:47,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:06:47,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:06:47,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:06:47,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:06:47,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:06:47,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:06:47,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (1/1) ... [2021-12-14 18:06:47,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:06:47,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:06:47,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:06:47,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:06:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 18:06:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 18:06:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-14 18:06:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-14 18:06:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_get_rc_config [2021-12-14 18:06:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_get_rc_config [2021-12-14 18:06:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:06:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:06:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:06:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:06:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:06:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:06:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:06:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:06:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-12-14 18:06:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-12-14 18:06:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:06:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:06:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:06:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:06:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-12-14 18:06:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-12-14 18:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:06:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_download_firmware [2021-12-14 18:06:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_download_firmware [2021-12-14 18:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 18:06:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 18:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:06:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-12-14 18:06:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-12-14 18:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_usb_talk [2021-12-14 18:06:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_usb_talk [2021-12-14 18:06:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:06:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:06:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-14 18:06:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-14 18:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:06:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_streaming_ctrl [2021-12-14 18:06:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_streaming_ctrl [2021-12-14 18:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-14 18:06:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-14 18:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:06:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:06:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i2c_mutex_of_dvb_usb_device [2021-12-14 18:06:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i2c_mutex_of_dvb_usb_device [2021-12-14 18:06:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-14 18:06:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-14 18:06:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 18:06:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 18:06:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2021-12-14 18:06:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2021-12-14 18:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 18:06:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 18:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:06:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:06:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:06:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_i2c_xfer [2021-12-14 18:06:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_i2c_xfer [2021-12-14 18:06:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_identify_state [2021-12-14 18:06:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_identify_state [2021-12-14 18:06:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:06:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:06:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_usb_mutex_of_dvb_usb_device [2021-12-14 18:06:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_usb_mutex_of_dvb_usb_device [2021-12-14 18:06:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:06:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:06:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:06:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:06:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:06:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:06:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:06:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure lme_firmware_switch [2021-12-14 18:06:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lme_firmware_switch [2021-12-14 18:06:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-12-14 18:06:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-12-14 18:06:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure lme_coldreset [2021-12-14 18:06:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lme_coldreset [2021-12-14 18:06:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_powerup [2021-12-14 18:06:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_powerup [2021-12-14 18:06:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-14 18:06:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-14 18:06:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:06:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:06:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:06:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_probe [2021-12-14 18:06:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_probe [2021-12-14 18:06:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-14 18:06:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-14 18:06:48,291 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:06:48,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:06:48,568 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:06:52,088 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:06:52,096 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:06:52,096 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:06:52,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:06:52 BoogieIcfgContainer [2021-12-14 18:06:52,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:06:52,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:06:52,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:06:52,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:06:52,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:06:45" (1/3) ... [2021-12-14 18:06:52,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5e8d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:06:52, skipping insertion in model container [2021-12-14 18:06:52,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:06:47" (2/3) ... [2021-12-14 18:06:52,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5e8d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:06:52, skipping insertion in model container [2021-12-14 18:06:52,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:06:52" (3/3) ... [2021-12-14 18:06:52,104 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i [2021-12-14 18:06:52,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:06:52,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:06:52,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:06:52,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:06:52,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:06:52,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 731 states, 538 states have (on average 1.3828996282527881) internal successors, (744), 563 states have internal predecessors, (744), 151 states have call successors, (151), 41 states have call predecessors, (151), 40 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2021-12-14 18:06:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-14 18:06:52,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:06:52,182 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:06:52,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:06:52,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:06:52,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1846445218, now seen corresponding path program 1 times [2021-12-14 18:06:52,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:06:52,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033714604] [2021-12-14 18:06:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:06:52,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:06:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:06:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:06:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:06:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:06:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:06:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:06:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:06:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:06:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:06:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:06:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:06:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:06:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:06:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-12-14 18:06:53,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:06:53,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033714604] [2021-12-14 18:06:53,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033714604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:06:53,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:06:53,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:06:53,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458769964] [2021-12-14 18:06:53,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:06:53,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:06:53,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:06:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:06:53,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:06:53,138 INFO L87 Difference]: Start difference. First operand has 731 states, 538 states have (on average 1.3828996282527881) internal successors, (744), 563 states have internal predecessors, (744), 151 states have call successors, (151), 41 states have call predecessors, (151), 40 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 18:06:55,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:06:57,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:06:58,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:06:58,193 INFO L93 Difference]: Finished difference Result 1543 states and 2311 transitions. [2021-12-14 18:06:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:06:58,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 180 [2021-12-14 18:06:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:06:58,218 INFO L225 Difference]: With dead ends: 1543 [2021-12-14 18:06:58,218 INFO L226 Difference]: Without dead ends: 804 [2021-12-14 18:06:58,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:06:58,233 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 249 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 340 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:06:58,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2171 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 564 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-14 18:06:58,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-12-14 18:06:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 718. [2021-12-14 18:06:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 533 states have (on average 1.3696060037523452) internal successors, (730), 550 states have internal predecessors, (730), 145 states have call successors, (145), 40 states have call predecessors, (145), 39 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2021-12-14 18:06:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1011 transitions. [2021-12-14 18:06:58,339 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1011 transitions. Word has length 180 [2021-12-14 18:06:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:06:58,339 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 1011 transitions. [2021-12-14 18:06:58,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 18:06:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1011 transitions. [2021-12-14 18:06:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-14 18:06:58,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:06:58,342 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:06:58,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:06:58,343 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:06:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:06:58,343 INFO L85 PathProgramCache]: Analyzing trace with hash -213408590, now seen corresponding path program 1 times [2021-12-14 18:06:58,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:06:58,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209712089] [2021-12-14 18:06:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:06:58,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:06:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:06:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:06:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:06:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:06:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:06:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:06:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:06:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:06:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:06:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:06:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:06:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:06:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:06:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-12-14 18:06:58,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:06:58,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209712089] [2021-12-14 18:06:58,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209712089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:06:58,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:06:58,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:06:58,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789879515] [2021-12-14 18:06:58,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:06:58,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:06:58,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:06:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:06:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:06:58,969 INFO L87 Difference]: Start difference. First operand 718 states and 1011 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:01,712 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 [] [2021-12-14 18:07:03,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:07,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:09,062 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 [] [2021-12-14 18:07:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:09,697 INFO L93 Difference]: Finished difference Result 2242 states and 3235 transitions. [2021-12-14 18:07:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:07:09,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 180 [2021-12-14 18:07:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:09,705 INFO L225 Difference]: With dead ends: 2242 [2021-12-14 18:07:09,706 INFO L226 Difference]: Without dead ends: 1558 [2021-12-14 18:07:09,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:07:09,709 INFO L933 BasicCegarLoop]: 1124 mSDtfsCounter, 1426 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 698 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:09,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 3733 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 1312 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2021-12-14 18:07:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-12-14 18:07:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1368. [2021-12-14 18:07:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1024 states have (on average 1.375) internal successors, (1408), 1051 states have internal predecessors, (1408), 266 states have call successors, (266), 78 states have call predecessors, (266), 77 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) [2021-12-14 18:07:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1931 transitions. [2021-12-14 18:07:09,770 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1931 transitions. Word has length 180 [2021-12-14 18:07:09,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:09,772 INFO L470 AbstractCegarLoop]: Abstraction has 1368 states and 1931 transitions. [2021-12-14 18:07:09,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1931 transitions. [2021-12-14 18:07:09,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-14 18:07:09,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:09,784 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:09,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:07:09,795 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:09,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1424102539, now seen corresponding path program 1 times [2021-12-14 18:07:09,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:09,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180317973] [2021-12-14 18:07:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:09,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-12-14 18:07:10,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:10,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180317973] [2021-12-14 18:07:10,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180317973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:10,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:10,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:10,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612436416] [2021-12-14 18:07:10,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:10,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:10,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:10,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:10,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:10,369 INFO L87 Difference]: Start difference. First operand 1368 states and 1931 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:13,088 INFO L93 Difference]: Finished difference Result 4322 states and 6256 transitions. [2021-12-14 18:07:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:07:13,089 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), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 180 [2021-12-14 18:07:13,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:13,106 INFO L225 Difference]: With dead ends: 4322 [2021-12-14 18:07:13,106 INFO L226 Difference]: Without dead ends: 2988 [2021-12-14 18:07:13,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:07:13,117 INFO L933 BasicCegarLoop]: 1141 mSDtfsCounter, 1656 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1028 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:13,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1761 Valid, 2673 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1028 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-14 18:07:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-12-14 18:07:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2652. [2021-12-14 18:07:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 1997 states have (on average 1.3775663495242865) internal successors, (2751), 2042 states have internal predecessors, (2751), 501 states have call successors, (501), 154 states have call predecessors, (501), 153 states have return successors, (492), 491 states have call predecessors, (492), 492 states have call successors, (492) [2021-12-14 18:07:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3744 transitions. [2021-12-14 18:07:13,262 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3744 transitions. Word has length 180 [2021-12-14 18:07:13,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:13,262 INFO L470 AbstractCegarLoop]: Abstraction has 2652 states and 3744 transitions. [2021-12-14 18:07:13,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:13,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3744 transitions. [2021-12-14 18:07:13,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-14 18:07:13,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:13,265 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:13,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:07:13,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:13,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2042366166, now seen corresponding path program 1 times [2021-12-14 18:07:13,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:13,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262109100] [2021-12-14 18:07:13,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:13,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-12-14 18:07:13,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:13,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262109100] [2021-12-14 18:07:13,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262109100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:13,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:13,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:13,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981250551] [2021-12-14 18:07:13,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:13,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:13,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:13,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:13,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:13,709 INFO L87 Difference]: Start difference. First operand 2652 states and 3744 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:16,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:17,844 INFO L93 Difference]: Finished difference Result 6788 states and 9675 transitions. [2021-12-14 18:07:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:07:17,844 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), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 183 [2021-12-14 18:07:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:17,863 INFO L225 Difference]: With dead ends: 6788 [2021-12-14 18:07:17,864 INFO L226 Difference]: Without dead ends: 4170 [2021-12-14 18:07:17,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:07:17,874 INFO L933 BasicCegarLoop]: 1043 mSDtfsCounter, 812 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:17,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 3086 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-14 18:07:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2021-12-14 18:07:17,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3560. [2021-12-14 18:07:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 2693 states have (on average 1.3676197549201634) internal successors, (3683), 2738 states have internal predecessors, (3683), 635 states have call successors, (635), 232 states have call predecessors, (635), 231 states have return successors, (626), 625 states have call predecessors, (626), 626 states have call successors, (626) [2021-12-14 18:07:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4944 transitions. [2021-12-14 18:07:17,993 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4944 transitions. Word has length 183 [2021-12-14 18:07:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:17,994 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 4944 transitions. [2021-12-14 18:07:17,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:17,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4944 transitions. [2021-12-14 18:07:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-14 18:07:17,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:17,996 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:17,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:07:17,997 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1410128186, now seen corresponding path program 1 times [2021-12-14 18:07:17,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:17,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426963592] [2021-12-14 18:07:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:17,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-12-14 18:07:18,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:18,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426963592] [2021-12-14 18:07:18,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426963592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:18,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:18,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:18,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613455821] [2021-12-14 18:07:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:18,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:18,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:18,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:18,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:18,493 INFO L87 Difference]: Start difference. First operand 3560 states and 4944 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:21,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:23,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:24,987 INFO L93 Difference]: Finished difference Result 10980 states and 15599 transitions. [2021-12-14 18:07:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:07:24,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 187 [2021-12-14 18:07:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:25,027 INFO L225 Difference]: With dead ends: 10980 [2021-12-14 18:07:25,028 INFO L226 Difference]: Without dead ends: 7464 [2021-12-14 18:07:25,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:07:25,087 INFO L933 BasicCegarLoop]: 1795 mSDtfsCounter, 1327 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 673 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:25,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1447 Valid, 3735 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 761 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-12-14 18:07:25,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7464 states. [2021-12-14 18:07:25,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7464 to 6424. [2021-12-14 18:07:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6424 states, 4879 states have (on average 1.3697478991596639) internal successors, (6683), 4962 states have internal predecessors, (6683), 1125 states have call successors, (1125), 420 states have call predecessors, (1125), 419 states have return successors, (1116), 1113 states have call predecessors, (1116), 1116 states have call successors, (1116) [2021-12-14 18:07:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6424 states to 6424 states and 8924 transitions. [2021-12-14 18:07:25,282 INFO L78 Accepts]: Start accepts. Automaton has 6424 states and 8924 transitions. Word has length 187 [2021-12-14 18:07:25,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:25,283 INFO L470 AbstractCegarLoop]: Abstraction has 6424 states and 8924 transitions. [2021-12-14 18:07:25,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-14 18:07:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6424 states and 8924 transitions. [2021-12-14 18:07:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-14 18:07:25,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:25,284 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:25,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:07:25,285 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash 660623640, now seen corresponding path program 1 times [2021-12-14 18:07:25,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:25,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972717088] [2021-12-14 18:07:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:25,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:07:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2021-12-14 18:07:25,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:25,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972717088] [2021-12-14 18:07:25,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972717088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:25,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:25,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:25,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736612944] [2021-12-14 18:07:25,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:25,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:25,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:25,907 INFO L87 Difference]: Start difference. First operand 6424 states and 8924 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:28,999 INFO L93 Difference]: Finished difference Result 8558 states and 12062 transitions. [2021-12-14 18:07:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:07:29,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 200 [2021-12-14 18:07:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:29,039 INFO L225 Difference]: With dead ends: 8558 [2021-12-14 18:07:29,039 INFO L226 Difference]: Without dead ends: 8554 [2021-12-14 18:07:29,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:07:29,045 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 1248 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:29,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 2300 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-14 18:07:29,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2021-12-14 18:07:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7124. [2021-12-14 18:07:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 5384 states have (on average 1.3538261515601784) internal successors, (7289), 5465 states have internal predecessors, (7289), 1219 states have call successors, (1219), 521 states have call predecessors, (1219), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2021-12-14 18:07:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 9720 transitions. [2021-12-14 18:07:29,308 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 9720 transitions. Word has length 200 [2021-12-14 18:07:29,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:29,308 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 9720 transitions. [2021-12-14 18:07:29,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 9720 transitions. [2021-12-14 18:07:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-14 18:07:29,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:29,310 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:29,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:07:29,311 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:29,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:29,311 INFO L85 PathProgramCache]: Analyzing trace with hash -995686152, now seen corresponding path program 1 times [2021-12-14 18:07:29,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:29,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140120012] [2021-12-14 18:07:29,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:29,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:07:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2021-12-14 18:07:29,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:29,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140120012] [2021-12-14 18:07:29,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140120012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:29,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:29,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:29,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828975909] [2021-12-14 18:07:29,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:29,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:29,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:29,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:29,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:29,863 INFO L87 Difference]: Start difference. First operand 7124 states and 9720 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:31,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:33,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:34,985 INFO L93 Difference]: Finished difference Result 8551 states and 12041 transitions. [2021-12-14 18:07:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:07:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 201 [2021-12-14 18:07:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:35,019 INFO L225 Difference]: With dead ends: 8551 [2021-12-14 18:07:35,020 INFO L226 Difference]: Without dead ends: 8548 [2021-12-14 18:07:35,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:07:35,025 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 1156 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 395 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:35,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 2114 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 568 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-14 18:07:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8548 states. [2021-12-14 18:07:35,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8548 to 7123. [2021-12-14 18:07:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7123 states, 5384 states have (on average 1.3536404160475484) internal successors, (7288), 5464 states have internal predecessors, (7288), 1218 states have call successors, (1218), 521 states have call predecessors, (1218), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2021-12-14 18:07:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7123 states to 7123 states and 9718 transitions. [2021-12-14 18:07:35,275 INFO L78 Accepts]: Start accepts. Automaton has 7123 states and 9718 transitions. Word has length 201 [2021-12-14 18:07:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:35,275 INFO L470 AbstractCegarLoop]: Abstraction has 7123 states and 9718 transitions. [2021-12-14 18:07:35,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7123 states and 9718 transitions. [2021-12-14 18:07:35,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-14 18:07:35,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:35,277 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:35,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:07:35,278 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:35,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash -801677285, now seen corresponding path program 1 times [2021-12-14 18:07:35,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:35,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891438200] [2021-12-14 18:07:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:35,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:07:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2021-12-14 18:07:35,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:35,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891438200] [2021-12-14 18:07:35,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891438200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:35,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:35,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:35,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494095174] [2021-12-14 18:07:35,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:35,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:35,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:35,860 INFO L87 Difference]: Start difference. First operand 7123 states and 9718 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:38,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:40,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:41,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:41,537 INFO L93 Difference]: Finished difference Result 8550 states and 12039 transitions. [2021-12-14 18:07:41,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:07:41,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 202 [2021-12-14 18:07:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:41,564 INFO L225 Difference]: With dead ends: 8550 [2021-12-14 18:07:41,565 INFO L226 Difference]: Without dead ends: 8547 [2021-12-14 18:07:41,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:07:41,570 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 1153 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 396 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:41,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 2112 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 573 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2021-12-14 18:07:41,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-12-14 18:07:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 7122. [2021-12-14 18:07:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 5384 states have (on average 1.3534546805349184) internal successors, (7287), 5463 states have internal predecessors, (7287), 1217 states have call successors, (1217), 521 states have call predecessors, (1217), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2021-12-14 18:07:41,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 9716 transitions. [2021-12-14 18:07:41,827 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 9716 transitions. Word has length 202 [2021-12-14 18:07:41,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:41,828 INFO L470 AbstractCegarLoop]: Abstraction has 7122 states and 9716 transitions. [2021-12-14 18:07:41,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:41,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 9716 transitions. [2021-12-14 18:07:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-14 18:07:41,830 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:41,830 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:41,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 18:07:41,831 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:41,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:41,831 INFO L85 PathProgramCache]: Analyzing trace with hash 917635163, now seen corresponding path program 1 times [2021-12-14 18:07:41,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:41,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528820267] [2021-12-14 18:07:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:41,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:07:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2021-12-14 18:07:42,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:42,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528820267] [2021-12-14 18:07:42,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528820267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:42,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:42,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:07:42,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891757909] [2021-12-14 18:07:42,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:42,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:07:42,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:07:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:42,405 INFO L87 Difference]: Start difference. First operand 7122 states and 9716 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:44,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:46,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:48,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:48,029 INFO L93 Difference]: Finished difference Result 8549 states and 12037 transitions. [2021-12-14 18:07:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:07:48,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 203 [2021-12-14 18:07:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:48,059 INFO L225 Difference]: With dead ends: 8549 [2021-12-14 18:07:48,059 INFO L226 Difference]: Without dead ends: 8546 [2021-12-14 18:07:48,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:07:48,065 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 1154 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 389 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:48,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 2606 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 804 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-12-14 18:07:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8546 states. [2021-12-14 18:07:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8546 to 7121. [2021-12-14 18:07:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7121 states, 5384 states have (on average 1.3532689450222883) internal successors, (7286), 5462 states have internal predecessors, (7286), 1216 states have call successors, (1216), 521 states have call predecessors, (1216), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2021-12-14 18:07:48,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7121 states to 7121 states and 9714 transitions. [2021-12-14 18:07:48,322 INFO L78 Accepts]: Start accepts. Automaton has 7121 states and 9714 transitions. Word has length 203 [2021-12-14 18:07:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:48,323 INFO L470 AbstractCegarLoop]: Abstraction has 7121 states and 9714 transitions. [2021-12-14 18:07:48,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:07:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7121 states and 9714 transitions. [2021-12-14 18:07:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-14 18:07:48,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:48,324 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:48,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 18:07:48,325 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1618248930, now seen corresponding path program 1 times [2021-12-14 18:07:48,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:48,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299670374] [2021-12-14 18:07:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:48,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:07:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:07:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:07:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:07:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:07:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:07:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:07:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:07:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:07:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:07:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:07:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:07:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 18:07:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:07:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:07:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:07:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat